Luke Williamson (born 2 June 1978) is an Australian former professional rugby league footballer who played in the 1990s and 2000s.

Williamson spoke with NRL.com in 2020 saying "I was on a scholarship with South Queensland and they offered me a contract right in the middle of Super League war.

The Crushers offered me a contract worth exactly the same amount – $10,000 for the year – as Super League did when I was in South Queensland's under 17s.

After the Rams folded before the start of the 1999 NRL season, Williamson signed with the Mal Meninga coached Canberra Raiders (the Rams actually had its season launch in early February, but owners News Limited pulled the plug on the club days later as part of the peace deal between Super League and the Australian Rugby League which resulted in the formation of the NRL).

Following the season Williamson left Canberra and join another new and short lived club, the Northern Eagles.

After playing in the backs for most of his career, Williamson took on the role of Lock forward following the retirement of Ben Kennedy at the end of the 2006 season.

He is also the nephew of former Innisfail, Newtown, Qld, New South Wales and Australian and Halifax winger Lionel Williamson.