| Thomas Keller | |
| Fullname: | Thomas Leon Keller |
| Birth Date: | 1999 8, df=yes |
| Birth Place: | Munich, Germany |
| Height: | 1.87 m |
| Position: | Centre-back |
| Currentclub: | 1. FC Heidenheim |
| Clubnumber: | 27 |
| Youthyears1: | –2017 |
| Youthclubs1: | SpVgg Unterhaching |
| Youthyears2: | 2017–2018 |
| Youthclubs2: | FC Ingolstadt |
| Years1: | 2018–2020 |
| Clubs1: | FC Ingolstadt II |
| Caps1: | 28 |
| Goals1: | 3 |
| Years2: | 2019–2022 |
| Clubs2: | FC Ingolstadt |
| Caps2: | 61 |
| Goals2: | 6 |
| Years3: | 2022– |
| Clubs3: | 1. FC Heidenheim |
| Caps3: | 7 |
| Goals3: | 0 |
| Club-Update: | 3 July 2023 |
Thomas Leon Keller (born 5 August 1999) is a German professional footballer who plays as a centre-back for club 1. FC Heidenheim.
Keller made his professional debut for FC Ingolstadt in the 3. Liga on 22 July 2019, starting in the away match against Carl Zeiss Jena which finished as a 2–1 win.[1]
On 27 April 2022, Keller signed a three-year contract with 1. FC Heidenheim, effective from 1 July 2022.[2]