The 2009–10 Union Dutchwomen women's hockey team represented Union College in the 2009–10 NCAA Division I women's hockey season.
The Dutchwomen were a member of the Eastern College Athletic Conference.
The club's overall record was 5 wins, 28 losses and 1 tie.
In the ECAC, its conference mark was 1 win, 20 losses and 1 tie.
On February 20, 2010, senior Jackie Koetteritz, had played in her 125th game for the Dutchwomen, setting a record for the most games in a Dutchwoman uniform.