The Women's 100 metre backstroke event at the 2010 Commonwealth Games took place on 5 and 6 October 2010, at the SPM Swimming Pool Complex.

Four heats were held, with both containing the seven swimmers. The heat in which a swimmer competed did not formally matter for advancement, as the swimmers with the top sixteen times advanced to the semifinals and the top eight times from there qualified for the finals.

Heats

Heat 1 Rank Lane Name Nationality Time Notes 1 3 Fariha Zaman 01:10.38 2 4 Talisa Lanoe 01:13.19 3 5 Kristie Millar 01:20.83

Heat 2 Rank Lane Name Nationality Time Notes 1 3 Georgia Davies 01:01.63 Q 2 4 Gemma Spofforth 01:01.68 Q 3 5 Sophie Edington 01:01.88 Q 4 6 Lauren Lavigna 01:02.58 Q 5 2 Jennifer Oldham 01:05.64 6 1 Jade Howard 01:09.35 7 7 Siona Huxley 01:12.85

Heat 3 Rank Lane Name Nationality Time Notes 1 4 Elizabeth Simmonds 01:01.05 Q 2 3 Sinead Russell 01:01.49 Q 3 6 Melissa Ingram 01:01.51 Q 4 5 Emily Thomas 01:01.77 Q 5 2 Melanie Nocher 01:03.53 Q 6 7 Kah Chan 01:05.48 Q 7 1 Jyotsna Pansare 01:10.07

Heat 4 Rank Lane Name Nationality Time Notes 1 5 Belinda Hocking 01:00.87 Q 2 4 Emily Seebohm 01:00.90 Q 3 6 Stephanie Proud 01:01.68 Q 4 3 Julia Wilkinson 01:01.71 Q 5 2 Kiera Aitken 01:04.82 Q 6 7 Chelsey Wilson 01:05.23 Q 7 1 Alexia Royal-Eatmon 01:08.67 8 8 Rachel Fortunato 01:15.10

Semifinals

Semifinal 1 Rank Lane Name Nationality Time Notes 1 4 Emily Seebohm 01:00.28 Q, CG 2 5 Sinead Russell 01:01.07 Q 3 3 Georgia Davies 01:01.14 Q 4 6 Stephanie Proud 01:01.25 5 2 Emily Thomas 01:01.58 6 7 Lauren Lavigna 01:02.08 7 1 Kiera Aitken 01:04.87 8 8 Kah Chan 01:05.80

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Belinda Hocking 01:00.71 Q 2 7 Sophie Edington 01:00.80 Q 3 2 Julia Wilkinson 01:00.82 Q 4 3 Melissa Ingram 01:00.92 Q 5 6 Gemma Spofforth 01:01.05 Q 6 5 Elizabeth Simmonds 01:01.42 7 1 Melanie Nocher 01:02.60 8 8 Chelsey Wilson 01:04.60

Final Rank Lane Name Nationality Time Notes 4 Emily Seebohm 59.79 CG 7 Gemma Spofforth 01:00.02 6 Julia Wilkinson 01:00.74 4 3 Sophie Edington 01:00.81 4 5 Belinda Hocking 01:00.81 6 8 Georgia Davies 01:01.05 7 2 Melissa Ingram 01:01.14 8 1 Sinead Russell 01:01.42

References