(gold) Ethel Catherwood (a.k.a. Hannah)
1928 high jump
(silver) Barbara Burke (a.k.a. Hannah)
1936 4x100 m relay
(bronze) Hannah Stockbauer
2004 swimming - 4x200 m freestyle relay
(gold/bronze) Hannah Kearney
2010; 2014 freestyle skiing
(bronze) Hannah Macleod
2012 field hockey
(gold) Sophie Hosking (a.k.a. Hannah)
2012 rowing
(silver) Hannah Mills
2012 sailing