| Season: | 2013 |
| Seasonlink: | 2013 MLL season |
| Team: | Hamilton Nationals |
| League: | Major League Lacrosse |
| Teamlink: | Hamilton Nationals |
| Record: | 9-5 |
| Goalsfor: | 170 |
| Goalsagainst: | 168 |
| Generalmanager: | Jody Gage |
| Coach: | Regy Thorpe |
| Arena: | Ron Joyce Stadium |
| Prevseason Year: | 2012 |
The 2013 Hamilton Nationals season is the fifth and final season for the Hamilton Nationals of Major League Lacrosse, and third since relocating from Toronto. They improved upon their 2012 season in which they finished with a record of 4-10. But lost to the Bayhawks in the semifinals