| Jurisdiction: | Diocese |
| Maracay | |
| Latin: | Dioecesis Maracayensis |
| Country: | Venezuela |
| Rite: | Latin Rite |
| Established: | 21 June 1958 (years ago) |
| Area Km2: | 7,014 |
| Population: | 1,588,749 |
| Population As Of: | 2004 |
| Catholics: | 1,382,083 |
| Catholics Percent: | 87.0 |
| Map: | Diócesis de Maracay.svg |
The Roman Catholic Diocese of Maracay (Latin: Dioecesis Maracayensis) is a diocese located in the city of Maracay in the ecclesiastical province of Valencia en Venezuela in Venezuela.
On 21 June 1958 Pope Pius XII established the Diocese of Maracay from the Diocese of Calabozo and Metropolitan Archdiocese of Caracas.