Australian actress Fischer was voted into first place in a list of 30 redheaded contenders.
Ranking fourth in the poll of 2,000 Britons, Prince Harry was still crowned the world’s sexiest ginger man.
The 38-year-old beat out Ewan McGregor and Eddie Redmayne to the title.
Also on the "most attractive male gingers" list were Michael Fassbender and Benedict Cumberbatch.
Lindsay Lohan, Amy Adams, Julianne Moore and Jessica Chastain also managed to secure a place on the list.
They were joined by Karen Gillan, Geri Horner and Nicola Roberts.
The final rankings also included the likes of Tom Hiddleston and Rupert Grint.
Harriett Scott of GingerComms, which commissioned the study, said she was “delighted" so many Brits were in the top 30.
She added: “We were delighted that so many Brits made the top 30 list, including Stacey Dooley at number three."
Prince Harry is set to release his upcoming autobiography, Spare, on January 10.