Jennifer Rosanne Tinmouth (born August 3, 1978) is an English motorcycle racer. She is the current female Isle of Man TT lap record holder, breaking the record during her first ever TT in 2009 and gaining a Guinness World Record for this achievement. She then re-broke the record during her second TT in 2010 taking the record to an average lap speed of 119.945 mph and receiving another Guinness World Record in the process.
Jenny is also the first and only female competing in the British Superbike Championship, for which she received yet another Guinness World Record. She currently runs her own team, Two Wheel Racing, with the support of Manx Glass & Glazing Ltd, in the British Superbike Championship for 2013.
Jenny has achieved many firsts for women in the sport. She was the first female to enter and qualify to race in the British 125GP championship, the British Supersport and Supersport Cup Championships and the British Championship.
She is the first female to lead and score points in a British Championship Race, the first to stand on the podium and the first to win a British Championship Race with a win in the Supersport Cup at Silverstone in 2010. She completed the 2010 championship with the most points and in previous years would have won the championship outright but with the new 2010 rules she was placed 3rd overall, the highest championship finishing place for a female competitor.
Jenny is the first British female to race in World Supersport and the first to race a full-blown superbike when she was invited to race for Rizla Suzuki in 2007 as a team mate to current Moto Gp star Cal Crutchlow.