The May Bumps 2008 were a series of rowing races held at Cambridge University from Wednesday 11 June 2008 until Saturday 14 June 2008. The races were run as a bumps race and have been held annually in mid-June in this form since 1887. See May Bumps for the format of the races. In 2008, a total of 171 crews took part (94 men's crews and 77 women's crews), with over 1500 participants in total.
1st & 3rd Trinity men bumped Caius on the first day to take the headship for the first time since 1973; the first change in men's headship since 2002.
Pembroke women bumped Jesus on the first day to take back the headship they lost in 2007.
1st & 3rd Trinity II were the highest men's 2nd VIII at the end of the week, holding 14th position.