Tim Jonkers (born 3 July 1981 in Amsterdam, Netherlands), is an ex-professional rugby league footballer of the 1990s and 2000s. An Ireland international representative second-row forward, he played his club football with St. Helens, with whom he had Challenge Cup and Super League grand final success, as well as Wigan, Salford and Leigh.
Jonkers moved to St Helens, Merseyside at the age of six, learning his trade at local Blackbrook rugby club. He was snapped up inevitably by St. Helens and was hailed as one of Saints' brightest young hopes.
Jonkers' career at Knowsley Road fizzled out in 2004 mainly due to injury. Jonkers found it tough to gain his place back in the team and subsequently joined Salford City Reds on loan, before completing a permanent deal in 2005. A recurrence of an injury to his knee, meant that Jonkers was forced to sit out most of his first season, and in March 2006, with first team opportunities scarce, he accepted a one month loan deal with Wigan Warriors to play under his former boss Ian Millward. On his return to Salford, Leigh Centurions quickly stepped in to take Jonkers on loan till the end of the season. Yet again though, Jonkers' luck deserted him and a knee ligament injury ruled him out for several months. Jonkers signed a permanent deal with Leigh for the 2007 season in November 2006. The injury persisted though and Jonkers announced his retirement from the game on 11 June 2007.