It depends who you mean. There are likely several notable people with that name.
If you mean the Welsh fashion designer, he is presumably straight since he has a wife.
There is also the 24th Governor of Georgia who served for 8 months in 1801. It is unclear what his sexual orientation was as little is known about him, but he was presumably straight.
No he's not
There is a picture of him with a woman on his MySpace fan page, though he has made no public statement about his sexual orientation.
He's straight.
David Schwimmer is straight, and he is married to Zoe Buckman
David Bromstad is gay. He discusses his sexuality and partners frequently in various interviews he grants.
The sexual orientation of David Rodriguez is unknown.
David Hille's sexual orientation is not publicly known or discussed.
David Justice is Straight not Bisexaul
Heterosexual/straight !
No he's not
David Lee Roth is straight.
There is a picture of him with a woman on his MySpace fan page, though he has made no public statement about his sexual orientation.
He is a shy straight kid
He's straight.
David Schwimmer is straight, and he is married to Zoe Buckman
[Unknown. Previous answer was rambling about why you shouldn't ask/care.]
i think it does not matter to me,he seems like a good person