Melby can refer to the following:

People Bob Melby (1928–2019), American optometrist and politician from Florida Ernest O. Melby (1891–1987), professor, dean, and university president Gaute Melby Gundersen (born 1972), Norwegian hurdler Guri Melby (born 1981), Norwegian politician James C. Melby (1949–2007), wrestling historian John Melby (born 1941), American composer John F. Melby (1913–1992), American diplomat

Places Melby, Halsnæs Municipality, a village in Halsnæs municipality in the Capital Region of Denmark Melby Windmill, a smock mill located at Melby in Halsnæs Municipality, Denmark Melby, Funen, a village in Funen, Denmark Melby, Shetland, a village in the Shetland islands in Scotland Melby, Norway, a village in the municipality of Skaun in Trøndelag county, Norway Melby, Minnesota, an unincorporated community in the United States

See also Melbury (disambiguation) Medelby Mejlby Melmerby (disambiguation)