Marta Anna Walczykiewicz (Polish pronunciation: ['marta valt???'kj?vit??]; born 1 August 1987) is a Polish sprint canoer who has competed since the late 2000s.
She won eleven medals at the ICF Canoe Sprint World Championships with one gold (K-1 4 x 200 m: 2014), eight silvers (K-1 200 m: 2009, 2011, 2013, 2014, 2015; K-2 200 m: 2010, K-1 200 m relay: 2013, K-4 500 m: 2014) and a bronze (K-2 200 m: 2007).
At the 2015 European Games Walczykiewicz won Poland's first gold medal in the K-1 200 m event.
In June 2015, she competed in the inaugural European Games, for Poland in canoe sprint, more specifically, Women's K-1 200m.
She earned a gold medal.
She competed for Poland at the 2016 Summer Olympics in the women's K-1 200 metres and the women's K-4 500 metres.
She won the silver medal in the women's K-1 200 m event.
Her team in the women's K-4 500 m event finished in 9th place.
Walczykiewicz was the flag bearer for Poland during the closing ceremony.