| Nicholas Ammeter | |
| Birth Date: | 11 December 2000 |
| Birth Place: | New York City, United States |
| Height: | 1.85 m |
| Position: | Goalkeeper |
| Currentclub: | Las Vegas Lights |
| Clubnumber: | 1 |
| Youthclubs1: | Aarau |
| Years1: | 2018 |
| Clubs1: | Aarau II |
| Caps1: | 2 |
| Goals1: | 0 |
| Years2: | 2018–2022 |
| Clubs2: | Aarau |
| Caps2: | 38 |
| Goals2: | 0 |
| Years3: | 2018–2019 |
| Clubs3: | → Baden (loan) |
| Caps3: | 26 |
| Goals3: | 0 |
| Years4: | 2021 |
| Clubs4: | → Young Boys (loan) |
| Caps4: | 1 |
| Goals4: | 0 |
| Years5: | 2021 |
| Clubs5: | → Young Boys II (loan) |
| Caps5: | 2 |
| Goals5: | 0 |
| Years6: | 2022–2024 |
| Clubs6: | Wil |
| Caps6: | 30 |
| Goals6: | 0 |
| Years7: | 2022 |
| Clubs7: | Wil II |
| Caps7: | 1 |
| Goals7: | 0 |
| Years8: | 2024– |
| Clubs8: | Las Vegas Lights |
| Caps8: | 0 |
| Goals8: | 0 |
| Nationalyears1: | 2015–2016 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2017 |
| Nationalcaps2: | 1 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2019 |
| Nationalcaps3: | 1 |
| Nationalgoals3: | 0 |
| Club-Update: | 23 February 2024 |
| Nationalteam-Update: | 5 September 2019 |
Nicholas Ammeter (born 11 December 2000) is a Swiss footballer who plays as a goalkeeper for Las Vegas Lights in the USL Championship.
Ammeter started his career with Swiss second-tier side Aarau.[1] In 2018, he was sent on loan to FC Baden in the Swiss third tier.[2] In 2021, Ammeter was sent on loan to Swiss top flight club YB, where he made 1 league appearances and scored 0 goals. On 12 December 2021, he debuted for YB during a 4–3 win over Sion.
On 10 June 2022, Ammeter signed a two-year contract with Wil.[3]
On 22 February 2024, Ammeter signed on with second-tier American side side Las Vegas Lights of the USL Championship.[4]
Ammeter is eligible to represent the United States internationally, having been born there.[5]