Sarah Lagger (born 3 September 1999 in Spittal an der Drau) is an Austrian athlete competing in the combined events.^[1] As a junior she won a gold medal in the heptathlon at the 2016 World U20 Championships and a silver at the 2018 edition.

Outdoor

• 200 metres – 24.53 (-0.5 m/s, Cali 2015)
• 800 metres – 2:11.53 (Tampere 2018)
• 100 metres hurdles – 13.98 (+0.9 m/s, Linz 2017)
• High jump – 1.79 (Wels 2015)
• Long jump – 6.31 (+0.6 m/s, Kapfenberg 2015)
• Shot put – 15.23 (Gävle 2019)
• Javelin throw – 50.32 (Eisenstadt 2020)
• Heptathlon – 6225 (Tampere 2018)

Indoor

• 60 metres – 7.81 (Linz 2017)
• 800 metres – 2:14.05 (Vienna 2018)
• 60 metres hurdles – 8.50 (Linz 2018)
• High jump – 1.77 (Linz 2018)
• Long jump – 6.18 (Vienna 2019)
• Shot put – 14.98 (Linz 2020)
• Pentathlon – 4372 (Linz 2019)