2009 Tonga Major League

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| competition = Tonga Major League

| season = 2009

| winners = Marist FC

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| prevseason = 2008

| nextseason = 2010-11

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The 2009 season of the Tonga Major League was the 31st season of top flight association football competition in Tonga.[https://www.rsssf.org/tablest/tongachamp.html Tonga – List of Champions] at RSSSF.com Marist FC won the championship for the first time, ending an 11-year championship winning streak from Lotohaʻapai United.[https://www.rsssf.org/tablest/tonga2011.html Tonga 2010–11] at RSSSF