Suzann Pettersen (born 7 April 1981) is a Norwegian professional golfer. She plays mainly on the U.S.-based LPGA Tour, and is also a member of the Ladies European Tour. Her career best world ranking is second. She has held that position at several times, most recently beginning 22 August 2011.
Pettersen was born in Oslo, Norway, and was a successful amateur golfer. She is a five-time Norwegian Amateur Champion (1996–2000), and won the British Girls Championship in 1999. She represented Norway in the Espirito Santo Trophy World Amateur Team Championship in 1998 and 2000, becoming World Amateur Champion in her second appearance. She also represented Europe in the 1997 and 1999 Junior Ryder Cup Matches.
Pettersen turned professional in September 2000 at age 19 and gained her Ladies European Tour card with an 11th place finish at the 2001 LET Qualifying School. In her 2001 rookie season, she played in ten events without missing a cut. In her second start as a professional, Pettersen won the Open de France Dames in a playoff over Becky Morgan. She finished second on the Order of Merit and was named LET Rookie of the Year.