Samantha Ronson (born 7 August 1977) is an English singer-songwriter and disc jockey who presently lives in Los Angeles, California.

Ronson was born in London. She is the daughter of writer-socialite Ann Dexter-Jones and music executive and real estate entrepreneur Laurence Ronson. She is Jewish.. Ronson is related to former British Foreign Secretary Sir Malcolm Rifkind and Leon Brittan (Baron of Spennithorne), and is the younger sister of music producer Mark Ronson and the twin sister of fashion designer Charlotte Ronson . Her uncle is Gerald Ronson.

After her parents divorced, her mother married Foreigner guitarist Mick Jones and moved the family to New York. Jones contributed to a childhood surrounded by music. This marriage produced Ronson's two younger half siblings Alexander and Annabelle. Ann and Mick divorced in 2007.