| Mode: | Basketball |
| Year: | 2012–13 |
| Prev Year: | 2011–12 |
| Next Year: | 2013–14 |
| Team: | Lafayette Leopards |
| Conference: | Patriot League |
| Short Conf: | Patriot |
| Record: | 19–15 |
| Conf Record: | 10–4 |
| Head Coach: | Fran O'Hanlon |
| Hc Year: | 18th |
| Asst Coach1: | Pat Doherty |
| Asst Coach2: | Donovan Williams |
| Asst Coach3: | John O'Connor |
| Stadium: | Kirby Sports Center |
The 2012–13 Lafayette Leopards men's basketball team represented Lafayette College during the 2012–13 NCAA Division I men's basketball season. The Leopards, led by 18th year head coach Fran O'Hanlon, played their home games at the Kirby Sports Center and were members of the Patriot League. They finished the season 19–15, 10–4 in Patriot League play to finish in a tie for second place. They advanced to the championship game of the Patriot League tournament where they lost to Bucknell.[1] Despite their 19 wins, they did not participate in a postseason tournament.
| 3 | Tony Johnson | Guard | 6–0 | 177 | Senior | Folsom, California |
| 4 | Jack Detmer | Guard | 6–2 | 181 | Junior | Scarsdale, New York |
| 5 | Joey Ptasinsky | Guard | 6–2 | 172 | Sophomore | Highlands Ranch, Colorado |
| 12 | Seth Hinrichs | Guard | 6–7 | 214 | Sophomore | Clara City, Minnesota |
| 14 | Bryce Scott | Guard | 6–2 | 185 | Freshman | El Dorado Hills, California |
| 20 | Dan Trist | Forward | 6–9 | 217 | Sophomore | Sydney, Australia |
| 21 | Zach Rufer | Guard | 6–3 | 180 | Freshman | Bloomingburg, New York |
| 22 | Alan Flannigan | Forward | 6–6 | 211 | Sophomore | Dexter, Missouri |
| 23 | Les Smith | Guard | 6–0 | 190 | Junior | Cotati, California |
| 24 | Levi Giese | Forward | 6–9 | 215 | Senior | Tulsa, Oklahoma |
| 34 | Ben Freeland | Forward | 6–10 | 215 | Freshman | Santa Rosa, California |
| 44 | Billy Murphy | Forward | 6–9 | 205 | Freshman | Greenwich, Connecticut |
| 54 | Nathaniel Musters | Center | 6–10 | 230 | Freshman | Padstow, Australia |
|-!colspan=9| Regular season|-!colspan=9| 2013 Patriot League men's basketball tournament