Mark Collet

Mark Collet may refer to:


 * Sir Mark Collet, 1st Baronet (1816–1905), English merchant, banker and baronet
 * Mark Wilkes Collet (1826–1863), US Civil War officer
 * Sir Mark Edlmann Collet (1864–1944), of the Collet baronets
 * Mark Collett (born 1980), British far-right political activist