Guptill is a surname. Notable people with the surname include: Ernest Wilmot Guptill (1919–1976), Canadian physicist Martin Guptill (born 1986), New Zealand cricketer Michael Guptill-Bunce (born 1989), New Zealand cricketer, cousin of Martin Nancy Guptill (1941–2020), Canadian politician Scott D. Guptill (1889–1949), Canadian politician Stephen Guptill, American journalist and elderly advocate
See also Watson-Guptill, American publisher of instructional books in the arts