| Honorific-Prefix: | His Excellency |
| Nicolaus Olahus | |
| See: | Esztergom |
| Appointed: | 20 March 1553 |
| Ended: | 14 January 1568 |
| Predecessor: | George Martinuzzi |
| Successor: | Antonio Veranzio |
| Other Post: | Bishop of Eger |
| Birth Date: | 10 January 1493 |
| Birth Place: | Nagyszeben, Kingdom of Hungary (now Sibiu, Romania) |
| Death Place: | Pozsony, Kingdom of Hungary (now Bratislava, Slovakia) |
| Parents: | Stephanus Olahus Barbara Huszár |
| Signature: | Signature olah miklos.gif |
| Coat Of Arms: | COA archbishop HU Olah Miklos.png |
Nicolaus Olahus (Latin for Nicholas, the Vlach; Hungarian: Oláh Miklós; Romanian; Moldavian; Moldovan: Nicolae Valahul); 10 January 1493 – 15 January 1568) was the Archbishop of Esztergom, Primate of Hungary, and a distinguished Catholic prelate, humanist and historiographer.
Nicolaus Olahus was born in Nagyszeben (now Sibiu, Romania).[1]