Triin Aljand (born 8 July 1985) is a retired Estonian swimmer who won a silver medal at the 2012 European Aquatics Championships in 50 m butterfly.
She competed in the 2004, 2008 and 2012 Summer Olympics in the 50 m and 100 m freestyle and 100 butterfly, but never reached the finals.
She also participated in multiple FINA World Aquatics Championships.She attended Texas A&M University, where she swam for the women's varsity team.
On 21 November 2008 she broke the National Collegiate Athletic Association record for the 50-yard freestyle with her time of 21.61, though the record was disqualified after it was found the pool was just over one inch short.