Anthony David Weiner (pronounced /ˈwiːnər/; born September 4, 1964) is an American citizen and a Democratic politician from New York. He represents New York's ninth Congressional district in the United States House of Representatives. It includes parts of south-central and eastern Brooklyn and south-central Queens. In Queens, the ninth district includes the neighborhoods of Forest Hills, Maspeth, Fresh Meadows, Glendale, Howard Beach, Kew Gardens, Kew Gardens Hills, Middle Village, Ozone Park, Richmond Hill, Rego Park, Rockaway Beach, Belle Harbor, and Woodhaven. Its Brooklyn component includes Flatlands, Gerritsen Beach, Marine Park, Midwood, Mill Basin, and Sheepshead Bay.

Weiner was born in Brooklyn, New York, to Morton "Mort" Weiner (a neighborhood lawyer) and Frances "Fran" Weiner (a math teacher at Midwood High School). He lived for a time in Rochdale Village, a large cooperative apartment complex that was dedicated by President Kennedy. He attended New York public schools, including Brooklyn Technical High School, and received a bachelor's degree from the State University of New York at Plattsburgh.

Weiner was roommates with the Comedy Central program The Daily Show host Jon Stewart after college, and the sole documented recipient of political campaign contributions from the comedian.