Always. I name them depending on their gender and looks. If i cant think of a good name i just call them something stupid. Some include:
Skarmory, Male- Steel (So creative right?)
Kecleon, Female- Morphis
Electrike, Female- Baley (???)
Torkoal, Male- Smokey
Loudred, Male- Boomy
Zigzagoon, Male- Bandit (Actually don't have one but if i catch one that's it's name)
Machop, Female- ShelbyMarx (iCarly anyone?)
Sandshrew, Female- Percinip (It's from a very wierd dream I had...)
Rhyhorn, Male- Mac
Lairon, Female- Mallette (Small Hammer, Girl name ending)
Cacnea, Female- Thornia
Spoink, Female- Sam (Again, ???)
Breloom, Female- Mushi (Idk its a mushroom and i think thats a japenese girl name.)
Trapinch, Female- Snappette (You get it, right?)
Solrock- Solen
Doduo, Female- Gallivant (Thought of Gallop. Probably will change it)
Tentacruel, Female- Dr. Potato (I have no flipping clue...)
Oh yeah i play ruby. I keep catching girl pokemon, WTF?
Here Are some more that i just thought of for pokemon i dont have:
Electrode- Elechode
Mr. mime- MJ, Obama
Electabuzz- Electafuzz
Gardevior- Guarded*****
Nosepass- Rose Ass
Pikachu- PokeAtYou
Salemance- Figment
Minun/ Plusle- Sgt.DipS***
Archen/ Archeops- Turok, CleverGirl
Wynaut- Because (i am stupid lol)
Jynx- Prof.Trlwny, Soda
Kling/Klang/Klingklang