Charlene Thomas (née Snelgrove, born 6 May 1982) is an English middle distance runner who competes internationally for Great Britain.

A successful junior athlete nationally, in 2002 she won the 1500 metres at indoor BUSA championships and came second outdoors.

[1] Thomas was fifth over 1500 m at the Olympic Trials in 2008, but went on to be the surprise winner of the 1500 m at the 2009 National Championships ahead of the more favoured Stephanie Twell and Hannah England.

[1][3] This guaranteed her a place for the 2009 World Championships in Athletics, where she made it into the semi-finals of the women's 1500 metres in Berlin.

[4] She did not compete for Great Britain in 2010 and that September she decided to leave her job as a Design and Technology supply teacher to focus on running full-time.