David Forsyth may refer to:

• David Forsyth (actor) (born 1947), American soap opera actor
• David Forsyth (chess player) (1854–1909), Scottish and New Zealand chess writer and inventor of Forsyth notation
• David Forsyth (computer scientist), contemporary American computer scientist
• David Forsyth (soccer) (1852–1936), Canadian educator and soccer player and administrator

• Forsyth (surname) for other people named Forsyth
• Forsyth (disambiguation) for other things named Forsyth