Buffett is a surname of French origin and may refer to:
- David Buffett (born 1942), the current Chief Minister of Norfolk Island
- Howard Buffett (1903-1964), American politician, father of Warren Buffett
- Howard Graham Buffett (born 1954), son of Warren Buffett
- Ivens Buffett, Australian politician
- Jimmy Buffett (born 1946), American musician
- Peter Buffett (born 1958), musician, son of Warren Buffett
- Susan Buffett (1932-2004), wife of Warren Buffett
- Warren Buffett (born 1930), American investor and CEO of Berkshire Hathaway