David Welch
David Welch may refer to:
- David A. Welch, Canadian political scientist
- David Welch (horticulturist), British horticulturist
- David Welch (diplomat), American diplomat
- David Welch (baseball), baseball pitcher
- David Welch (optical engineer), American businessman and research scientist
- David Welch (historian), English historian
- David E. Welch, Wisconsin state assemblyman and senator
- David Welch (New Hampshire politician), member of the New Hampshire House of Representatives
- Dave Welch (poker player), British poker player
- Dave Welch (admiral), United States Navy admiral