| Tom Costelloe | |
| Irish: | Tomás Mac Coisteala |
| Nickname: | The mile height boy |
| Occupation: | Farmer |
| Sport: | Gaelic football |
| Code: | Football |
| County: | Kerry |
| Province: | Munster |
| Club: | Tralee Mitchels |
| Clcountyf: | 4 |
| Clcountyh: | 3 |
| Counties: | Kerry |
| Icyears: | 1903-1918 |
| Icposition: | Right corner-back |
| Icapps(Points): | 50 |
| Icprovince: | 8 |
| Icallireland: | 3 |
| Birth Place: | Tralee, County Kerry, Ireland |
| Death Place: | Tralee, County Kerry, Ireland |
| Birth Date: | 1887 1, df=yes |
Thomas Costelloe (13 January 1887 – 15 September 1934) was an Irish Gaelic footballer. His championship career with the Kerry senior spanned fifteen years from 1903 until 1918.[1]
Born in Tralee, County Kerry, Costelloe was born to Thomas and Mary Costelloe. He was educated locally before later working as a farmer and lime kiln operator.
As a dual player, Costelloe first played competitive football and hurling with the Tralee Mitchels club. In a lengthy career he won four county football championship medals between 1907 and 1917, as well as three county hurling championship medals between 1908 and 1912.
Costelloe was just sixteen-years-old when he made his debut as a substitute on the inter-county scene as a member of the Kerry senior football team in 1903. Over the course of the next fifteen years, he won three All-Ireland medals, beginning with a lone triumph in 1909 as captain, followed by back-to-back championships between 1913 and 1914. He also won eight Munster medals.