23 January 1993) is a Dutch cyclist, specializing in cyclo-cross..
In October 2018 Betsema joined the professional cyclo-cross team Marlux-Bingoal.
In the season 2018-2019 she won the crosses at Poprad, Neerpelt, Aigle, Hittnau, Lutterbach, Wachtebeke, Koksijde, Eschenbach, Antwerpen, Otegem, Maldegem, Middelkerke, Hulst, Leuven and Oostmalle.
She also won the bronze medal at the European championships.
On 5 April 2019 it was announced that she had tested positive for the use of steroids in a drug test on 27 January 2019 during the World Cup in Hoogerheide.
Betsema denies the facts but she was temporarily suspended by her team awaiting the outcome of the counter-expertise.
On 16 May, it was announced her B sample was also positive for steroids.