Hannah McLean (born 1 July 1981 in London, England) is a former competitive swimmer for New Zealand.

[6] The 2002 Commonwealth Games in Manchester served as the senior international breakthrough for 21 year old McLean as she claimed some valuable finals appearances.

[6] McLean qualified for the 2004 Summer Olympics at the 2004 New Zealand Championships in the heats if the 100 m backstroke with a personal best time of 1:01.55.

[8] At the games, McLean missed out on the final by 0.25 after finishing 5th in the semi-final of the 200 metre backstroke in a time of 2:12.87.

[6] McLean won a bronze medal in the 200 meter backstroke at the 2006 Commonwealth Games held in Melbourne in a time of 2:12.47.

During the 4x100 metre medley relay, McLean swum a 1:00.83 in the backstroke leg to break the games record which she held until 2010 when broken by Emily Seebohm.

[14] Following on from the Commonwealth Games, McLean claimed a further international bronze medal at the 2006 FINA World Swimming Championships (25 m) in Shanghai.