The 26-year-old heptathlete won Olympic gold in London this summer while also setting three personal bests during her outstanding season.
And the Sheffield-born star, who this week insisted her focus remains on the heptathlon in the short term, could not hide her delight at scooping yet another award in a year that just keeps getting better.
"It's an incredible honour considering the amazing performances we've had this year from British women," she said.
Of the record 65 medals won by Team GB at the Olympics, British women were involved in winning 25 of them.
The success continued at the Paralympics with female competitors winning 19 of 34 golds won by ParalympicsGB.
And it was the female cyclists who received the most recognition at the Sunday Times Award ceremony as the team pursuit trio of Dani King, Jo Rowsell and Laura Trott won team of the year and Sarah Storey OBE won Paralympian of the year.
And Storey admitted that, despite her four golds at London 2012, her award was far from expected.
"I never expected I'd win the SWOTY Paralympian of the Year Award so it came as a lovely surprise," she said.
"I first won it back in 1992 after the Barcelona Paralympic Games, which makes me feel really old! I was gutted I couldn't make the awards ceremony as I'd been ill, so thank you to Tanni Grey-Thompson for accepting it on my behalf."
Also honoured was rower Katherine Grainger who won Olympian of the year for her gold in the women's double sculls and taekwondo star Jade Jones who won young Olympian.