| Code: | Hurling |
| Sport: | Hurling |
| Mark Marnell | |
| Irish: | Marc Ó Mearnáil |
| Feet: | 5 |
| Inches: | 8 |
| Occupation: | Community Welfare Officer |
| County: | Kilkenny |
| Province: | Leinster |
| Club: | Danesfort Tullaroan Danesfort-Dunnamaggin |
| Clcounty: | 1 |
| Counties: | Kilkenny |
| Icposition: | Left corner-back |
| Icyears: | 1946-1956 |
| Icprovince: | 3 |
| Icallireland: | 1 |
| Nhl: | 0 |
| Icupdate: | 20:48, 26 June 2014 |
| Birth Place: | Danesfort, County Kilkenny, Ireland |
| Death Place: | Bennettsbridge, County Kilkenny, Ireland |
| Birth Date: | 1926 |
| Death Date: | 9 July 1992 (aged 66) |
Mark Marnell (1926 - 9 July 1992) was an Irish hurler who played as a left corner-back for the Kilkenny senior team.
Born in Oldtown, Danesfort, County Kilkenny, Marnell first arrived on the inter-county scene when he first linked up with the Kilkenny senior team, making his debut in the 1947 championship. Marnell was a regular member of the team over the next few years. During that time he won one All-Ireland medal and three Leinster medals.[1] [2] He was an All-Ireland runner-up on one occasion.
Marnell also represented the Leinster inter-provincial team, however, he never won a Railway Cup medal. At club level he won one championship medal with Tullaroan.