The women's 200 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.

[1] Prior to the competition, the records were as follows: Qualification rule: First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals.

[2][3] Wind:Heat 1: +0.5 m/s, Heat 2: -0.4 m/s, Heat 3: -0.4 m/s, Heat 4: -0.6 m/s, Heat 5: +0.6 m/s Qualification rule: First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final.

[4][5] Wind:Heat 1: -1.3 m/s, Heat 2: -1.2 m/s, Heat 3: -0.7 m/s [6] Wind: –0.4 m/s