The name Grayston may refer to:
Given name Grayston Burgess (1932–2019), English countertenor and conductor Greyston Holt (born 1985), Canadian actor Grayston Ives (born 1948), British composer, singer and choral director Grayston Lynch (1923–2008), American soldier and CIA officer
Surname Chris Grayston (active since 1990), British promoter and musician Kenneth Grayston (1914–2005), British theologian Neil Grayston (actor) (born 1981), Canadian actor Neil Grayston (footballer) (born 1975), English footballer