| Clubname: | Legionovia Legionowo |
| Fullname: | Klub Sportowy Legionovia Legionowo |
| Nickname: | Novia |
| Founded: | (as Robotniczy Klub Sportowy Czerwoni) |
| Ground: | Lt. Jan Mrugacz Municipal Stadium |
| Capacity: | 1,730 |
| Chairman: | Dariusz Ziąbski |
| Manager: | Bartłomiej Walewski |
| League: | IV liga Mazovia |
| Season: | 2023–24 |
| Position: | III liga, group I, 17th of 18 (relegated) |
| Website: | http://www.kslegionovia.pl |
| Leftarm1: | FFFF00 |
| Body1: | FFFF00 |
| Rightarm1: | FFFF00 |
| Shorts1: | FF0000 |
| Socks1: | FFFF00 |
| Leftarm2: | FF0000 |
| Body2: | FF0000 |
| Rightarm2: | FF0000 |
| Shorts2: | FF0000 |
| Socks2: | FF0000 |
Legionovia Legionowo is a Polish football club based in the city of Legionowo, Mazovia. As of the 2024–25 season, they compete in the IV liga Mazovia, after suffering relegation from the 2023–24 III liga.
They were founded in 1930,[1] as part of the multi-sports club, by members of the Polish Socialist Party[2] under the name Workers' Sports Club The Reds (Polish: Robotniczy Klub Sportowy Czerwoni). It was one of the few clubs that continued to play during the World War II.
In the 2018–19 season, they reached the last 16 of the Polish Cup.[3]
They have been playing in the III liga for most of the 21st century, with the exception of between 2013 and 2018 when they played in the third division.[4]
The club plays their home games at the Municipal Stadium.[5]