Begg (from Gaelic Beag: little, young, small of stature) is a Scottish surname and may refer to:
- Alistair Begg (1952 – ), Scottish minister in the United States
- Anne Begg (1955 – ), Scottish politician
- Chris Begg (1979 – ), Canadian baseball player
- James Begg (1808 – 1883), Scottish minister
- John Begg, British architect in India
- Moazzam Begg (1968 – ), British/Pakistani held by the U.S. as a terror suspect
- Si Begg (1972 – ), British DJ