Susan Krumins (née Kuijken; born 8 July 1986) is a Dutch middle- and long-distance runner.

Kuijken has twice represented the Netherlands at the World Championships in Athletics, with her best finish being eighth in the 5000 m in 2013.

Her performances led to Florida State University winning the team titles in ACC competition indoors, outdoors and in cross country.

[8] A personal best of 4:05.86 minutes for the 1500 m brought her selection for the 2009 World Championships in Athletics, although she did not make it out of the heats stage.

[10] A run of 15:04.36 minutes at the Bislett Games made her the top European that season and she went on to finish eighth in the final of that event at the 2013 World Championships in Athletics – Europe's best performer.

[11] At the start of 2014 she set an early world-leading time of 4:07.21 minutes for the 1500 m while winning at the Perth Track Classic.

She was selected to run the 5000 m at the 2014 European Athletics Championships and came third behind compatriot Sifan Hassan and Meraf Bahta (both African-born).

[4] Her first global medal came at the end of the track season at the 2014 IAAF Continental Cup, where she represented Europe and was 3000 m bronze medallist behind Genzebe Dibaba and Meraf.

On 8 August 2018, she won a silver medal behind Israeli Lonah Chemtai Salpeter in the 10,000 metres at the 2018 European Athletics Championships in Berlin.