| Leon Klassen | |
| Height: | 1.74 m |
| Birth Date: | 2000 5, df=yes |
| Birth Place: | Bad Neuenahr-Ahrweiler, Germany |
| Position: | Left-back |
| Currentclub: | Lyngby |
| Clubnumber: | 20 |
| Youthclubs1: | SC Bad Bodendorf[1] |
| Youthyears2: | –2017 |
| Youthclubs2: | 1. FC Köln |
| Youthyears3: | 2017–2018 |
| Youthclubs3: | 1860 Munich |
| Years1: | 2017–2021 |
| Clubs1: | 1860 Munich II |
| Caps1: | 35 |
| Goals1: | 2 |
| Years2: | 2018–2021 |
| Clubs2: | 1860 Munich |
| Caps2: | 27 |
| Goals2: | 2 |
| Years3: | 2021 |
| Clubs3: | Tirol |
| Caps3: | 17 |
| Goals3: | 0 |
| Years4: | 2022–2024 |
| Clubs4: | Spartak Moscow |
| Caps4: | 18 |
| Goals4: | 0 |
| Years5: | 2024– |
| Clubs5: | Lyngby |
| Caps5: | 9 |
| Goals5: | 1 |
| Nationalyears1: | 2017 |
| Nationalteam1: | Russia U17 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2017 |
| Nationalteam2: | Russia U18 |
| Nationalcaps2: | 1 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2018 |
| Nationalteam3: | Russia U19 |
| Nationalcaps3: | 3 |
| Nationalgoals3: | 0 |
| Nationalyears4: | 2021 |
| Nationalteam4: | Russia U21 |
| Nationalcaps4: | 1 |
| Nationalgoals4: | 0 |
| Club-Update: | 3 December 2024 |
| Nationalteam-Update: | 12 October 2021 |
Leon Klassen (ru|Леон Классен; born 29 May 2000) is a German Russian professional footballer who plays as a left-back for Danish Superliga club Lyngby. He has represented Russia internationally at various youth levels.
Klassen made his professional debut in the 3. Liga for 1860 Munich on 31 July 2019, coming on as a substitute in the 87th minute for Benjamin Kindsvater against FSV Zwickau. He assisted Herbert Paul for Munich's third goal, with the match finishing as a 3–0 home win.[2]
On 27 May 2021, he signed with WSG Tirol in Austria.[3]
On 30 December 2021, he signed a 3.5-year contract with Russian Premier League club FC Spartak Moscow.[4] Klassen left Spartak by mutual consent on 27 June 2024.[5]
On 29 August 2024, Klassen signed a two-year contract with Lyngby in Denmark.[6]
Klassen was born in Germany to a Russian father and a German mother.
| Club | Season | League | Cup | Continental | Other | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||
| TSV 1860 Munich II | 2017–18 | Bayernliga | 14 | 1 | — | — | — | 14 | 1 | ||||
| 2018–19 | Bayernliga | 20 | 1 | — | — | — | 20 | 1 | |||||
| 2020–21 | Bayernliga | 1 | 0 | — | — | — | 1 | 0 | |||||
| Total | 35 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 35 | 2 | |||
| TSV 1860 Munich | 2017–18 | Regionalliga Bayern | 1 | 0 | — | — | — | 1 | 0 | ||||
| 2018–19 | 3. Liga | 0 | 0 | 0 | 0 | — | 2 | 0 | 2 | 0 | |||
| 2019–20 | 3. Liga | 19 | 2 | — | — | 4 | 1 | 23 | 3 | ||||
| 2020–21 | 3. Liga | 7 | 0 | 0 | 0 | — | 2 | 0 | 9 | 0 | |||
| Total | 27 | 2 | 0 | 0 | 0 | 0 | 8 | 1 | 35 | 3 | |||
| WSG Tirol | 2021–22 | Austrian Bundesliga | 17 | 0 | 3 | 0 | — | — | 20 | 0 | |||
| Spartak Moscow | 2021–22 | Russian Premier League | 2 | 0 | 1 | 0 | — | — | 3 | 0 | |||
| 2022–23 | Russian Premier League | 11 | 0 | 7 | 0 | — | — | 18 | 0 | ||||
| 2023–24 | Russian Premier League | 5 | 0 | 6 | 2 | — | — | 11 | 2 | ||||
| Total | 18 | 0 | 14 | 2 | 0 | 0 | 0 | 0 | 32 | 2 | |||
| Career total | 97 | 4 | 17 | 2 | 0 | 0 | 8 | 1 | 122 | 7 | |||
2020