"Beverly Crusher" - huge *male* Roegadyn
"Rush Limbaugh" - also a huge male Roegadyn

Both make me stop and do quiet double-takes even though I see them in Limsa all the time.

A few metric tons of double-entendre and sexual innuendo names which I don't actually find funny, because they blow (heh) my immersion too.

Lots of variations on the Size family - Pint Size, Bite Size, Snack Size (Lalafells all)

Best name so far - over on Mateus - a Hellsguard female Archer (was only L17 at the time) named "Audacious Rhapsody"