That depends on which Pat Williams you're talking about:
John Patrick Williams (born 1937), Congressman from Montana, 1979-1997, generally known as Pat Williams
Patrick Williams (composer) (born 1939), American composer of orchestral works, and songs and themes for film and television
Pat Williams (director), Canadian television director
Pat Williams (basketball) (born 1940), American basketball executive, senior vice-president of Orlando Magic; motivational speaker, author and radio host
Pat Williams (American football) (born 1972), American football player, defensive tackle for Minnesota Vikings and Buffalo Bills
Patrick Williams (wide receiver) (born 1986), American football player, wide receiver for the Baltimore Ravens
Sexual orientation of the fictional character of Pat is intentionally unknown, as is Pat's sex. This is all part of the joke.
Pat Butcher, the character from "EastEnders," was written as straight.
William Hartnell was heterosexual.
Postman Pat is the puppet star of a childrens entertainment program. He (it) is incapable of procreation therefore has no sexual orientation other than that imposed on the character by adults who watch childrens Tv.
Straight.
Rapper Don Omar, also known as William Omar Landrón Rivera, states that his sexual orientation is straight.
Pat Burrell, the American former Baseball player is married to his wife Michelle. He has not stated his sexual preference in public. WikiAnswers will not speculate on what is personal and private information to any individual.
President Taft is presumed to have been heterosexual.
William DeVry the Canadian television actor has not made it public what his sexual identity is. WikiAnswers will not speculate on what is personal and private business of the individuals concerned.
William H. Bonney, aka Henry McCarty, aka Billy the Kid, lived in a time when sexual orientation wasn't understood or talked about. So know one really knows, but it's assumed that he was heterosexual.
Prince William, duke of Cambridge, is heterosexual.
Due to popular rumors, many believe Pat is indeed Gay. But she has never come out. She has been married to men, And has had sex with them to conceive her child. So I'd say no