Liam Justin Messam (born 25 March 1984) is a retired New Zealand rugby union player who played in the TOP14 for RC Toulonnais.

After the retirement of then Chiefs captain Mils Muliaina, Messam was named the team's new co-captain from 2012 onwards, alongside Aaron Cruden.

He subsequently appeared several more times for New Zealand but was dropped a month out of the 2011 Rugby World Cup in favour of Victor Vito.

After the tournament was finished, Messam announced his intention to compete in rugby sevens for the Rio Olympics 2016.

After the Rio Olympics 2016, Messam played for the Chiefs in 2012 Super Rugby season, when injuries greatly affected the loose forward's positions.

[citation needed] Messam made his professional boxing debut in January 2015 against Rhys Sullivan on a Sonny Bill Williams undercard.

After witnessing the detrimental effect conventional pain relief and mental health medication has on close friends and family, Messam founded Ora CBD alongside Teddy Stanaway in 2020.