Nilus of Constantinople
|Ecumenical Patriarch of Constantinople|
|Church||Church of Constantinople|
|In office||spring 1380 – 1 February 1388|
|Predecessor||Macarius of Constantinople|
|Successor||Antony IV of Constantinople|
|Died||1 February 1388|
Nilus Kerameus (? – 1 February 1388) was the Orthodox Patriarch of Constantinople between spring 1380 and 1388. He was a Hesychast.
In 1380 he convened a synod to decide the metropolitanate of Moscow, choosing Bulgarian-born Hesychast Cyprian (1336–1406).