Jamie Lyon (born 24 January 1982), also known by the nickname of "Killer",[4] is an Australian former professional rugby league footballer who played in the 2000s and 2010s.

[5] Selected to play for the Australian Schoolboys team, while attending Parramatta Marist High School he was part of the 1999 squad who went undefeated in their tour of France, Ireland and England.

[7] Lyon made his NRL début coming off the bench in the Eels' round 21 clash against the newly merged Wests Tigers on 25 June 2000[8] becoming the 622nd first grader for Parramatta in the process.

He played again in Game II of the series however an ankle injury that was sustained in the Eels round 14 match against the defending premiers, found Lyon out for the remainder of the season.

In reaction to the announcement, fellow country players Justin Hodges and David Peachey publicly supported his decision.

"[20] Terry Hill added to the controversy when at the press conference to announce his own retirement, he predicted more young players would take Lyon's lead and leave the top grade.

[24] However, six weeks later on 4 June 2004, the Eels conceded and granted the clearance under the condition that Lyon could not play for another club in the NRL.

[25] Lyon agreed to the condition and signed a supplemental agreement to play with the Country Rugby League Group Four club up until the end of 2006.

[27] After bids from the Penrith Panthers,[28] the Gold Coast Dolphins (as they originally were going to be named),[29] the Canberra Raiders[28] and the Sea-eagles,[30] Lyon on 17 August 2004, signed with English Super League club St. Helens on a two-year deal.

He played for St Helens at centre, scoring a try and kicking 7 goals from 7 attempts, in their 2006 Challenge Cup Final victory against the Huddersfield Giants.

[43] In the end Manly won out when on 5 July 2006, 5 days after the anti-tampering deadline it was announced that Lyon had signed a four-year deal with the Brookvale-based club.

[55] Since Lyon's return to the NRL has played in the 2007 ANZAC Test against New Zealand and Games I and II of the 2007 State of Origin series.

[59] With the departure of captain Matt Orford to the Bradford Bulls in the Super League at the conclusion of the 2009 season, Lyon was named co-captain alongside Manly stalwart Jason King.

Lyon was also an almost automatic selection for both NSW and Australia, however he had sought exemption from representative duties on most occasions, citing family reasons.

[citation needed] Lyon started the 2010 Season playing at Five-Eighth and combining in the halves with Kieran Foran (at Halfback) for the Round 1 clash against the West Tigers at the Sydney Football Stadium.

Lyon also played in the 2010 ANZAC test vs New Zealand, scoring two goals and for Game 1 of the 2010 State of Origin series.

Lyon captained the Manly Sea Eagles from his position at centre in the 2011 NRL grand final, scoring a try in the win over the New Zealand Warriors.

On 3 November 2011 The annual RLIF Awards dinner was held at the Tower of London and Lyon was named centre of the year.

In 2013, Lyon played and captained in every game for Manly (each week) of the regular season and including the finals appearances.