Justine Smethurst (born January 1987 in Melbourne) is an Australian softball player.

She has represented Victoria on a variety of different teams and competed at the national championships several times, winning one in 2001.

She has been a member of the senior Australia women's national softball team, winning a bronze medal at the 2008 Summer Olympics.

She is trying to gain a spot on the roster to compete at the 2012 ISF XIII Women's World Championships.

[4][7] While she started playing before she was twelve, she did not move into the pitching position until she was that age.

[3] She represented Victoria at the national championships in 2005, 2006, 2007 and 2008, commuting from Hawaii in order to play with the side.

[6] Smethurst has been a member of the senior Australia women's national softball team.

She played in game at the Cup against the United States where Australia lost 5–2.