Maruschka Waldus (born 20 September 1992) is a Dutch football player who plays for Eredivisie club Feyenoord.

Waldus was a two-time member of the KNVB Talent Team (2009 and 2010) in Amsterdam and attended the Johan Cruyff Academy in the Netherlands.

In 2011, she played three seasons for the soccer club SC Heerenveen near her home town, first in the Eredivisie, which changed later to the BeNe League.

In the summer of 2015 she signed a contract in Sweden with Mallbackens IF, which plays in Damallsvenskan, the highest division, for the rest of the season.

In September 2017, Waldus joined Australian club Western Sydney Wanderers, together with fellow countrywoman Marlous Pieëte.

In March 2018 Waldus signed a contract with Avaldsnes Idrettslag in Norway playing the Toppserien and in the UEFA Women's Champions League.

In the UEFA Women's Champions League, after playing a qualifying round in Kroatia, they encountered winner of the 2017–2018 edition Olympique Lyonnais Féminin.

In Norway, in Haugesund after the first half 0–0 they lost with 0–2 and in Lyon the result was 5–0 in favour of Olympique Lyonnais Féminin.

In March 2019 The Flying Dutchman [9] or The Happy Soccer Nomad [10] returned to Norway and signed a two-year contract with Vålerenga IF to play in the Toppserien.

In May 2021, after the end of the Australian season, Waldus joined Dutch club PSV, signing a two-season contract.