Hendrik Johannes "Hennie" Otto (born 25 June 1976) is a South African professional golfer.

In 2003, while splitting time between the European and Challenge Tours, he finished tied for tenth at The Open Championship in his major championship début and went on to finish 73rd in the European Tour Order of Merit.

In 2008, again playing with limited European Tour status, he won the Italian Open and finished 37th on the Order of Merit.

Including the South African Open win, Otto has won 14 times on the Sunshine Tour since 1999.

This biographical article relating to golf in South Africa is a stub.