The classic Chaotic Evil "paladin" is, of course, the Anti-Paladin.
Long ago I also heard the term "Neferin" applied to anti-paladins... or maybe it was "Nefarian" or "Nepheran."
There were the eight other paladin types in "A Plethora of Paladins" by Christopher Wood in Dragon #106.
In BECMI D&D there was the Avenger, which, from his abilities and followers, was not only chaotic but also evil.
For Chaotic Good the only name I've ever heard used was from the above-mentioned article. However, "Crusader," "White Knight," "Chevalier," and "Cavalier" might all be applicable, if you just want some name possibilities.