After eleven games for the U-17 and 16 games for the U-19 of Switzerland, she was called up to the senior national team for the first time on 4 June 2019. She made her debut for the Switzerland national team on 14 June 2019 against
Serbia, coming on as a substitute for
Nadja Furrer. Her first competitive fixture came in a
Euro qualifying fixture versus Belgium, where she made errors that led to two goals after crosses, in a game Switzerland lost 4–0. Herzog missed out on the
2022 Euros and was only placed on the reserve list for the
2023 World Cup. Having developed positively in previous seasons and proven her worth during appearances in 2024 — including saving a penalty against
Sweden — Herzog became the Swiss starting goalkeeper in 2024. However, following a strong season by
Livia Peng, it was announced days before the
2025 Euros in Switzerland that Herzog would be relegated to second choice by manager
Pia Sundhage. On 23 June 2025, Herzog was called up to the Switzerland squad for the
UEFA Women's Euro 2025. == Honours ==