Mimico Mountaineers
| Sport | Box lacrosse |
|---|---|
| Founded | 1993 |
| League | Ontario Junior A Lacrosse League |
| Based in | Toronto, Ontario |
| Arena | Mimico Arena |
| Colours | Blue and White |
| Head coach | Dean George |
| General manager | Anthony Smitheram |
The Mimico Junior A Mountaineers are a Jr. A box lacrosse association in Toronto, Ontario, Canada. The Mountaineers operate junior-age and younger teams. Their home arena is Mimico Arena in the Mimico neighbourhood of Toronto. Beginning in 2015, their primary junior team will be a member of the Ontario Junior A Lacrosse League. From 1993 until 2014, the Mountaineers were members of the Ontario Junior B Lacrosse League.