Julia Stierli (born 3 April 1997) is a Swiss footballer who plays as a defender for FC Zürich and the Switzerland national team.

From 2012 to 2014 she played for FC Aarau and then switched to Zürich, with whom she won the double four times.

As of 17 December 2020, she has played 25 games for Zurich in the UEFA Women's Champions League, scoring four goals.

In the 2021/22 UEFA Women's Champions League, she was eliminated with Zurich by a 2-1 home defeat by AC Milan in the semi-finals of qualifying and thus missed the inaugural group stage.

In the third-place play-off, which was irrelevant to progression and lost to Valur Reykjavík 3-1, she scored the goal to make it 3-1.