Willie Garson Paszamant (February 20, 1964 – September 21, 2021) was an American actor. He appeared in over 75 films and more than 300 TV episodes. He was known for playing Stanford Blatch on the HBO series Sex and the City, in the related films Sex and the City and Sex and the City 2 and in the spin-off And Just Like That..., Mozzie in the USA Network series White Collar from 2009 to 2014, Ralph in the 2005 romantic comedy Little Manhattan, Gerard Hirsch in the reboot of Hawaii Five-0, and Martin Lloyd in the sci-fi series Stargate SG-1.

Garson was born in Highland Park, New Jersey, the son of Muriel (née Schwartz) and Donald M. Paszamant. Garson was Jewish. He attended Camp Wekeela in Hartford, Maine, as a child for 11 years. He graduated in 1982 from Highland Park High School. In 1985, he received a Bachelor of Fine Arts degree in Theater from Wesleyan University and a Master of Fine Arts degree from the Yale Drama School.