This is a list of alternate English Pokemon names I made up for every Pokemon.
Note that I hardly believe the majority of these are actually better than the official ones, but I tried to be original.

GEN 1

001 Bulbasaur - Peculeaf
002 Ivysaur - Bloomyst
003 Venusaur - Floweird
004 Charmander - Frizzard
005 Charmeleon - Blazzerd
006 Charizard - Burnwyrm
007 Squirtle - Sportoise
008 Wartortle - Tortify
009 Blastoise - Tortex
010 Caterpie - Wriggie
011 Metapod - Morphod
012 Butterfree - Flutterby
013 Weedle - Nipworm
014 Kakuna - Combcoon
015 Beedrill - Jabbee
016 Pidgey - Chirpish
017 Pidgeotto - Peckid
018 Pidgeot - Pidgale
019 Rattata - Vermite
020 Raticate - Verminate
021 Spearow - Spareck
022 Fearow - Sparath
023 Ekans - Pentser
024 Arbok - Poiser
025 Pikachu - Mouzap
026 Raichu - Ohmouse
027 Sandshrew - Shrewdune
028 Sandslash - Shredshrew
029 Nidoran F - Bibarb F
030 Nidorina - Barbette
031 Nidoqueen - Pinpress
032 Nidoran M - Bibarb M
033 Nidorino - Barbino
034 Nidoking - Pinperor
035 Clefairy - Sharpixie
036 Clefable - Octale
037 Vulpix - Secsear
038 Ninetales - Novuluk
039 Jigglypuff - Puddish
040 Wigglytuff - Poofait
041 Zubat - Cavermin
042 Golbat - Grotterror
043 Oddish - Bizarroot
044 Gloom - Whifflora
045 Vileplume - Rafflesion
046 Paras - Insected
047 Parasect - Sectenza
048 Venonat - Plagnat
049 Venomoth - Mothecary
050 Diglett - Umole
051 Dugtrio - Tremole
052 Meowth - Purrse
053 Persian - Purrince
054 Psyduck - Mallardy
055 Golduck - Maulard
056 Mankey - Simiman
057 Primeape - Odiook
058 Growlithe - Flarepup
059 Arcanine - Fortifire
060 Poliwag - Paddpole
061 Poliwhirl - Wadepole
062 Poliwrath - Whirlpole
063 Abra - Meditot
064 Kadabra - Psycholar
065 Alakazam - Profesper
066 Machop - Mussel
067 Machoke - Hussel
068 Machamp - Tussel
069 Bellsprout - Youngbud
070 Weepinbell - Droopbud
071 Victreebell - Bowlbud
072 Tentacool - Jellyfeel
073 Tentacruel - Jellyfreak
074 Geodude - Stonesrow
075 Graveler - Cragroll
076 Golem - Bowlder
077 Ponyta - Fryfoal
078 Rapidash - Hothoof
079 Slowpoke - Doofish
080 Slowbro - Dunshell
081 Magnemite - Magnut
082 Magneton - Tagnetic
083 Farfetch'd - Unleekly
084 Doduo - Ostrick
085 Dodrio - Ostrio
086 Seel - Pawdle
087 Dewgong - Manasee
088 Grimer - Gamuck
089 Muk - Sludpud
090 Shellder - Klamp
091 Cloyster - Keepearl
092 Gastly - Sifear
093 Haunter - Oxyghast
094 Gengar - Dupelgang
095 Onix - Rocoil
096 Drowsee - Morphant
097 Hypno - Luciderm
098 Krabby - Pincher
099 Kingler - Aristocrab
100 Voltorb - Buzzball
101 Electrode - Minepeeper
102 Exeggcute - Eggsplode
103 Exeggutor - Espalm
104 Cubone - Clubcub
105 Marowak - Craniclub
106 Hitmonlee - Kickbuck
107 Hitmonchan - Fistbock
108 Lickitung - Tastung
109 Koffing - Toxide
110 Weezing - Ditoxide
111 Rhyhorn - Hornoser
112 Rhydon - Dinoser
113 Chansey - Karmama
114 Tangela - Bushaggy
115 Kangaskhan - Kangarule
116 Horsea - Seaquine
117 Seadra - Hydrake
118 Goldeen - Prinseas
119 Seaking - Kingfin
120 Staryu - Pedestar
121 Starmie - Starkle
122 Mr. Mime - Boxdin
123 Scyther - Guillo
124 Jynx - Cosmetite
125 Electabuzz - Barbuzz
126 Magmar - Billaze
127 Pinsir - Cruxnip
128 Tauros - Centoro
129 Magikarp - Crownfish
130 Gyarados - Skulkraken
131 Lapras - Lochius
132 Ditto - Meetu
133 Eevee - Fittis
134 Vaporeon - Liquis
135 Jolteon - Joltas
136 Flareon - Fieros
137 Porygon - Porrygramy
138 Omanyte - Ammonity
139 Omastar - Ammonstros
140 Kabuto - Seashield
141 Kabutops - Seascythe
142 Aerodactyl - Tacktyl
143 Snorlax - Snorbese
144 Articuno - Frozodin
145 Zapdos - Thundva
146 Moltres - Meltri
147 Dratini - Draklet
148 Dragonair - Wavern
149 Dragonite - Wingvern
150 Mewtwo - Mewten
151 Mew - Mewt

GEN 2

152 Chikorita - Grewborn
153 Bayleef - Leafoot
154 Meganium - Herbisaur
155 Cyndaquil - Echindle
156 Quilava - Porcupyre
157 Typhlosion - Torchano
158 Totodile - Poppycroc
159 Croconaw - Alligaiter
160 Feraligatr - Croczar
161 Sentret - Tiptail
162 Furret - Tiptaller
163 Hoothoot - Hoother
164 Noctowl - Noctalon
165 Ledyba - Littybug
166 Ledian - Ladybuzz
167 Spinarak - Webble
168 Ariados - Tarantaunt
169 Crobat - Sonoir
170 Chinchou - Lantup
171 Lanturn - Anglamp
172 Pichu - Litebub
173 Cleffa - Qwart
174 Igglybuff - Piddish
175 Togepi - Sherrate
176 Togetic - Hapthorn
177 Natu - Aztik
178 Xatu - Astex
179 Mareep - Baazztt
180 Flaaffy - Woolwatt
181 Ampharos - Bulbeacon
182 Bellossom - Bloombeaut
183 Marill - Azurat
184 Azumarill - Azulie
185 Sudowoodo - Falsifolie
186 Politoed - Toadpole
187 Hoppip - Skedahlia
188 Skiploom - Prandelion
189 Jumpluff - Fluffrisk
190 Aipom - Orangihand
191 Sunkern - Helioseed
192 Sunflora - Jubiplant
193 Yanma - Agonfly
194 Wooper - Axolad
195 Quagsire - Swampotl
196 Espeon - Psychus
197 Umbreon - Shados
198 Murkrow - Kawile
199 Slowking - Stuperor
200 Misdreavus - Daedream
201 Unown - Enigmark
202 Wobbuffet - Seamzoh
203 Girafarig - Spottops
204 Pineco - Birchball
205 Forretress - Turretree
206 Dunsparce - Squirmyth
207 Gligar - Soarpion
208 Steelix - Spiron
209 Snubbull - Bullbark
210 Granbull - Bullbyte
211 Qwilfish - Puffish
212 Scizor - Pincision
213 Shuckle - Jarnacle
214 Heracross - Horncules
215 Sneasel - Weasly
216 Teddiursa - Creskub
217 Ursaring - Bearim
218 Slugma - Slagslug
219 Magcargo - Snailava
220 Swinub - Oinkub
221 Piloswine - Boaruff
222 Corsola - Coralite
223 Remoraid - Fishtol
224 Octillery - Octurret
225 Delibird - Pengwift
226 Mantine - Marayne
227 Skarmory - Aviarmor
228 Houndour - Fiendog
229 Houndoom - Howlhound
230 Kingdra - Draking
231 Phanpy - Pachyd
232 Donphan - Termiderm
233 Porygon2 - Porrygrade
234 Stantler - Antleer
235 Smeargle - Puppaint
236 Tyrogue - Newbik
237 Hitmontop - Spintack
238 Smoochum - Kismate
239 Elekid - Baybuzz
240 Magby - Blooblaz
241 Miltalk - Bovenus
242 Blissey - Mirther
243 Raikou - 
244 Entei - 
245 Suicune - 
246 Larvitar - Scornisaur
247 Pupitar - Pupungent
248 Tyranitar - Abhorrus
249 Lugia - 
250 Ho-Oh - 
251 Celebi - 

GEN 3

252 Treecko - Saptile
253 Grovyle - Reptimber
254 Sceptile - Lucifern
255 Torchic - Cinchick
256 Combusken - Charoost
257 Blaziken - Infowlno
258 Mudkip - Hopmire
259 Marshtomp - Crawmuck
260 Swampert - Enormarsh
261 Poochyena - Hyenarf
262 Mightyena - Howlena
263 Zigzagoon - Racclever
264 Linoone - Coonward
265 Wurmple - Sqwurm
266 Silcoon - Chrysilk
267 Beautifly - Hunterfly
268 Cascoon - Hardhusk
269 Dustox - Motoxin
270 Lotad - Lilotus
271 Lombre - Bloombrero
272 Ludicolo - Petaloco
273 Seedot - Nutyke
274 Nuzleaf - Nutured
275 Shiftry - Trixtree
276 Taillow - Smallow
277 Swellow - Tallow
278 Wingull - Gullifer
279 Pelipper - Gullper
280 Ralts - Squair
281 Kirlia - Bellina
282 Gardevoir - Sentiknell
283 Surskit - Skiffbug
284 Masquerain - Intimidite
285 Shroomish - Mushrunt
286 Breloom - Parashroom
287 Slakoth - Layzloth
288 Vigoroth - Motivape
289 Slaking - Royabout
290 Nincada - Stealtick
291 Ninjask - Stelphire
292 Shedinja - Shellthy
293 Whismur - Mumbmy
294 Loudred - Yerring
295 Exploud - Boombellow
296 Makuhita - Sumort
297 Hariyama - Knockrush
298 Azurill - Wazu
299 Nosepass - Nozapath
300 Skitty - Kittail
301 Delcatty - Delicat
302 Sableye - Nitesite
303 Mawile - Jowlplay
304 Aron - Clinkid
305 Lairon - Armoff
306 Aggron - Hosteele
307 Meditite - Yogit
308 Medicham - Yogait
309 Electrike - Boltyke
310 Manectric - Lyohm
311 Plusle - Posite
312 Minun - Negite
313 Volbeat - Bulbeat
314 Illumise - Luminoise
315 Roselia - Roserene
316 Gulpin - Voremet
317 Swalot - Horsdevour
318 Carvanha - Pirahnch
319 Sharpedo - Roughshark
320 Wailmer - Whallow
321 Wailord - Omigush
322 Numel - Humpbaked
323 Camerupt - Cameltdown
324 Torkoal - Krakatort
325 Spoink - Spriggy
326 Grumpig - Asiswine
327 Spinda - Bambuzle
328 Trapinch - Snapcrack
329 Vibrava - Larvern
330 Flygon - Dragonflit
331 Cacnea - Cacolanter
332 Cacturne - Cacdusk
333 Swablu - Fluffly
334 Altaria - Heavern
335 Zangoose - Fangoose
336 Seviper - Vipierce
337 Lunatone - Nightite
338 Solrock - Sunium
339 Barboach - Loacheek
340 Whiscash - Catastrofy
341 Corphish - Crustroop
342 Crawdaunt - Crawsnip
343 Baltoy - Toppel
344 Claydol - Dreadel
345 Lileep - Lilurk
346 Cradily - Barnicrib
347 Anorith - Arthropeb
348 Armaldo - Armordillo
349 Feebas - Frailail
350 Milotic - Marvelure
351 Castform - Elemold
352 Kecleon - Concealeon
353 Shuppet - Showdow
354 Banette - Maladoll
355 Duskull - Shadrift
356 Dusclops - Shadwell
357 Tropius - Tropisaur
358 Chimecho - Blowbell
359 Absol - Avirtue
360 Wynaut - Zatsoh
361 Snorunt - Snowmat
362 Glalie - Viceberg
363 Spheal - Sealobe
364 Sealeo - Jugglion
365 Walrein - Brawlrus
366 Clamperl - Pearlite
367 Huntail - Serpolka
368 Gorebyss - Deepink
369 Relicanth - Coeldtimer
370 Luvdisc - Cardyisc
371 Bagon - Wyrmaby
372 Shelgon - Draklude
373 Salamence - Furilisk
374 Beldum - Tearhal
375 Metang - Clasteel
376 Metagross - Grossteel
377 Regirock - 
378 Regice - 
379 Registeel - 
380 Latias - 
381 Latios - 
382 Kyogre - 
383 Groudon - 
384 Rayquaza - 
385 Jirachi - 
386 Deoxys - 

GEN 4

387 Turtwig - Sproutle
388 Grotle - Bushell
389 Torterra - Turroot
390 Chimchar - Sizzlian
391 Monferno - Scorchimp
392 Infernape - Gibburn
393 Piplup - Pingwip
394 Prinplup - Pingwince
395 Empoleon - Kingping
396 Starly - Chickster
397 Staravia - Fowlster
398 Staraptor - Hawkster
399 Bidoof - Buckoo
400 Bibarel - Barreloo
401 Kricketot - Crickid
402 Kricketune - Maestone
403 Shinx - Glynx
404 Luxio - Glyon
405 Luxray - Glyger
406 Budew - Buddie
407 Roserade - Rosasweet
408 Cranidos - Rexcull
409 Rampardos - Rammoth
410 Shieldon - Aegisaur
411 Bastiodon - Garritops
412 Burmy - Wurmba
413 Wormadam - Ladybag
414 Mothim - Mothcho
415 Combee - Threebie
416 Vespiquen - Elizabeeth
417 Pachirisu - Squirrent
418 Buizel - Weazerver
419 Floatzel - Weazgard
420 Cherubi - Cheripik
421 Cherrim - Cherripe
422 Shellos - Sanshel
423 Gastrodon - Oshlug
424 Ambipom - Decimian
425 Drifloon - Huvaire
426 Drifblim - Haughtaire
427 Buneary - Cochare
428 Lopunny - Loppyhare
429 Mismagius - Dreamaege
430 Honchkrow - Kawfatha
431 Glameow - Corkmew
432 Purugly - Spatcat
433 Chingling - Chingle
434 Stunky - Skodor
435 Skuntank - Festunk
436 Bronzor - Fleksheen
437 Bronzong - Rustreeng
438 Bonsly - Flowernaut
439 Mime Jr. - Mimite
440 Happiny - Prawmiss
441 Chatot - Parramble
442 Spiritomb - Phantomb
443 Gible - Shew
444 Gabite - Shaudaun
445 Garchomp - Konshoom
446 Munchlax - Tyround
447 Riolu - Kajah
448 Lucario - Jakyll
449 Hippopotas - Hippuppy
450 Hippowdon - Hippound
451 Skorupi - Orpeon
452 Drapion - Scorgre
453 Croagunk - Ribbile
454 Toxicroak - Venopond
455 Carnivine - Flaptrap
456 Finneon - Glowdfish
457 Lumineon - Beaconfin
458 Mantyke - Marooky
459 Snover - Frostop
460 Abomasnow - Chillzar
461 Weavile - Weaslash
462 Magnezone - Domagnion
463 Lickilicky - Gluttung
464 Rhyperior - Tyranoser
465 Tangrowth - Jumbush
466 Electivire - Caybolt
467 Magmortar - Blazboom
468 Togekiss - Gleeotine
469 Yanmega - Megatonfly
470 Leafeon - Folias
471 Glaceon - Freezis
472 Gliscor - Vorpion
473 Mamoswine - Mammoof
474 Porygon-Z - Poryglitch
475 Gallade - Scabbold
476 Probopass - Nozawey
477 Dusknoir - Shadark
478 Froslass - Lassberg
479 Rotom - Plugeist
480 Uxie - 
481 Mesprit - 
482 Azelf - 
483 Dialga - 
484 Palkia - 
485 Heatran - 
486 Regigigas - 
487 Giratina - 
488 Cresselia - 
489 Phione - 
490 Manaphy - 
491 Darkrai - 
492 Shaymin - 
493 Arceus - 

GEN 5

494 Victini - 
495 Snivy - Connivy
496 Servine - Vineglory
497 Serperior - Majestree
498 Tepig - Pyroink
499 Pignite - Pyrepork
500 Emboar - Boarbecue
501 Oshawott - Wotter
502 Dewott - Seamurai
503 Samurott - Shoalgun
504 Patrat - Peepmunk
505 Watchog - Sentinut
506 Lillipup - Terryip
507 Herdier - Harriere
508 Stoutland - Dignifido
509 Purrloin - Pilfur
510 Liepard - Leplunder
511 Pansage - Simishrub
512 Simisage - Hedgorilla
513 Pansear - Simisizzle
514 Simisear - Temperape
515 Panpour - Simisplash
516 Simipour - Chimpool
517 Munna - Murma
518 Musharna - Taplume
519 Pidove - Sweetweet
520 Tranquill - Dovely
521 Unfezant - Dovine
522 Blitzle - Zebramp
523 Zebstrika - Thorse
524 Roggenrola - Minirol
525 Boldore - Rockstep
526 Gigalith - Magnamous
527 Woobat - Batuft
528 Swoobat - Batender
529 Drilbur - Whurrow
530 Excadrill - Molout
531 Audino - Maybunny
532 Timburr - Plankster
533 Gurdurr - Wieldum
534 Conkeldurr - Honkrete
535 Tympole - Timitad
536 Palpitoad - Hoppluck
537 Seismitoad - Wartoad
538 Throh - Tossah
539 Sawk - Chopler
540 Sewaddle - Needleaf
541 Swadloon - Snugbug
542 Leavanny - Nurseed
543 Venipede - Pilleech
544 Whirlipede - Pupeel
545 Scolipede - Centyrant
546 Cottonee - Cottulus
547 Whimsicott - Wooleaf
548 Petilil - Sprowt
549 Lilligant - Mademosoil
550 Basculin - Roufin
551 Sandile - Shaydune
552 Krokorok - Shaydaddy
553 Krookodile - Crocovile
554 Darumaka - Dharojo
555 Darmanitan - Babburn
556 Maractus - Mariachti
557 Dwebble - Rokubbie
558 Crustle - Palastone
559 Scraggy - Dragg'n
560 Scrafty - Draggster
561 Sigilyph - Nazcaw
562 Yamask - Penumask
563 Cofagrigus - Kaskhamun
564 Tirtouga - Proturtle
565 Carracosta - Adamantiq
566 Archen - Plumeage
567 Archeops - Arocalypse
568 Trubbish - Rubbeast
569 Garbodor - Moldump
570 Zorua - 
571 Zoroark - 
572 Minccino - Chincharm
573 Cinccino - Chinchamp
574 Gothita - Gugaga
575 Gothorita - Madarling
576 Gothitelle - Maladame
577 Solosis - Unisel
578 Duosion - Exell
579 Reuniclus - Nuculus
580 Ducklett - Ugling
581 Swanna - Swankie
582 Vanillite - Vanilil
583 Vanillish - Vanillick
584 Vanilluxe - Twinilla
585 Deerling - Momendoe
586 Sawsbuck - Reigndeer
587 Emolga - Fansquirl
588 Karrablast - Pesant
589 Escavalier - Camalouse
590 Foongus - Fungall
591 Amoongus - Truffool
592 Frillish - Jelecto
593 Jellicent - Angelly
594 Alomomola - Sunkare
595 Joltik - Mitelite
596 Galvantula - Taranzista
597 Ferroseed - Ferroid
598 Ferrothorn - Ferrtify
599 Klink - Cognit
600 Klang - Coggle
601 Klinklang - Cogoggle
602 Tynamo - Lamprune
603 Eelektrik - Amprey
604 Eelektross - Amprowl
605 Elgyem - Wrigrey
606 Beheeyem - Orbiem
607 Litwick - Waxwisp
608 Lampent - Lampyre
609 Chandelure - Chandeloom
610 Axew - Tuskid
611 Fraxure - Macemaw
612 Haxorus - Tremblade
613 Cubchoo - Teddifret
614 Beartic - Brrpolar
615 Cryogonal - Frigidon
616 Shelmet - Conchield
617 Accelgor - Clamdestyn
618 Stunfisk - Flatflop
619 Mienfoo - Monafu
620 Mienshao - Moquando
621 Druddigon - Hordrake
622 Golett - Ghoulem
623 Golurk - Ghouliath
624 Pawniard - Minyfe
625 Bisharp - Expierce
626 Bouffalant - Buffafro
627 Rufflet - Libirdy
628 Braviary - Bombald
629 Vullaby - Vulchild
630 Mandibuzz - Vulchief
631 Heatmor - Antheater
632 Durant - Antadam
633 Deino - Dragune
634 Zweilous - Fiendeux
635 Hydreigon - Troivern
636 Larvesta - Solarva
637 Volcarona - Moltemoth
638 Cobalion - 
639 Terrakion - 
640 Virizion - 
641 Tornadus - 
642 Thundurus - 
643 Reshiram - 
644 Zekrom - 
645 Landorus - 
646 Kyurem - 
647 Keldeo - 
648 Meloetta - 
649 Genesect -