Seldin is a surname. Notable people with the surname include:
Abigail Seldin (born 1988), American edtech entrepreneur Cletus Seldin (born 1986), American super lightweight boxer Donald Seldin (1920–2018), American nephrologist Millard Seldin (1926–2020), American real estate developer, banker, basketball investor, and horsebreeder Ronnie Nyogetsu Reishin Seldin (1947–2017), American shakuhachi player Tim Seldin (born 1946), American educator