La Farge, LaFarge or Lafarge can refer to:
- Christopher Grant LaFarge (1862 – 1938), American architect and partner in the firm Heins & LaFarge, son of John LaFarge
- John LaFarge (1835 - 1910) American artist and writer
- Marie Lafarge (1816 - 1852) French murderess
- Oliver La Farge (1901 - 1963) American writer and anthropologist, grandson of John LaFarge
- Paul LaFarge (1970 - ) American novelist
- Peter La Farge (1931 - 1965) American folk singer, son of Oliver La Farge
- Antoinette LaFarge (1966 – ) American artist and writer
- La Farge, Wisconsin
- French industrial company Lafarge
- Lafarge Falls (Hamilton, Ontario)