Colin Williams may refer to:
- Colin Williams, first vice-president of the Council for Aboriginal Rights in 1951
- Colin Welland (1934âÂÂ2015), British actor and screenwriter originally named Colin Williams
- Colin J. Williams (born 1941), American sociologist
- Colin H. Williams (born 1950), British sociolinguist
- Colin Williams (priest) (born 1955), Archdeacon of Lancaster from 1999 to 2005
- Colin Williams (producer), of Jim Henson's Pajanimals
- Colin Williams, dean of University of Plymouth Colleges network
- Colin Williams, guitarist for British band His Majesty (founded 1983)
- Colin Williams, OBE, formerly Director, Scotland, The Princess Royal Trust for Carers, recipient of 2006 New Year Honours