Martina Eva van Berkel-Schwarz (born 23 January 1989 in Bülach) is a Swiss swimmer, who specialized in butterfly events.

[3] Van Berkel also trains for the Limmat Sharks in Zurich under her personal coach Dirk Reinicke.

She is the sister of one of the nation's prominent triathletes Jan van Berkel, who forged and motivated her to compete internationally in swimming.

[1] Van Berkel qualified for the women's 200 m butterfly at the 2012 Summer Olympics in London, by blasting a Swiss record and clearing a FINA B-standard entry time of 2:09.68 from the World Championships in Shanghai, China.

[4][5] She challenged seven other swimmers on the second heat, including defending Olympic bronze medalist Jessicah Schipper of Australia.