Colin Ebelthite (born 27 November 1984) is a former Australian professional tennis player.

The South Australian won three Futures titles including Sorrento (WA), Perth and Wellington.

Ebelthite joined the Australian Institute of Sport (AIS) Pro Tour squad in January.

While qualifying for his grand slam he defeated Australian rising talent Bernard Tomic.

Ebelthite competed in the Australian Open in 2009 where he was knocked out in the first round by Andreas Beck.