Bruce topped the ranking from Yahoo!, accounting for 41% of searches for the eight semi-finalists over the course of the series.
Her nearest competitor was Jaz Ellington, who was the subject of only half as many searches on 21%.
The full breakdown of the remaining contestants was as follows.
Bo Bruce - 41%
Jaz Ellington - 21%
Tyler James - 15%
Becky Hill - 7%
Vince Kidd - 6%
Ruth Brown - 6%
Max Milner - 3%
Leanne Mitchell - too few searches to register
Yahoo! search data correctly predicted that the girl-and-dog team of Ashleigh & Pudsey would win this month's Britain's Got Talent final.
Earlier this week it was confirmed that all eight semi-finalists will join the Voice UK live tour in September.
Watch Bruce and other members of Team Danny talk to Digital Spy below: