| Color1: |
|
| Color2: |
|
| Color3: | solid #093769 |
| Clubname: | O'Sullivan Beach-Lonsdale |
| Fullname: | O'Sullivan Beach-Lonsdale Football Club |
| Nickname: | Lions |
| League: | Adelaide Footy League |
| Ground: | Morphett Vale Primary School Oval, Morphett Vale |
| Song: | "La Marseillaise" |
| Pattern B1: | _fitzroylion |
| Pattern Sh1: | _goldsides |
| Pattern So1: | _brisbane2022h |
| Body1: | 78184A |
| Shorts1: | 78184A |
| Socks1: | 78184A |
The O'Sullivan Beach-Lonsdale Football Club, also known as the Lonsdale Lions, is an Australian rules football club that plays in the Adelaide Footy League.
The club was formed as a merger of the Lonsdale Football Club and the O’Sullivan Beach Football Club at the end of the 2001 season.[1] The club started in the Southern Football League competition in 2002 where they remained until 2017, fielding teams in Senior and some Junior grades.