| Honorific-Prefix: | His Excellency |
Mar John Menachery | |
| Vicar Apostolic of Thrissur | |
| Province: | Kerala |
| Diocese: | Apostolic Vicariate of Thrissur |
| See: | Paralus |
| Predecessor: | Adolph Medlycott |
| Successor: | Francis Vazhapilly |
| Ordination: | 11 August 1883 |
| Birth Date: | 1857 12, df=y |
| Birth Place: | Njarackal, Travancore, British India (present-day Ernakulam district Kerala, India) |
| Buried: | Our Lady of Lourdes Metropolitan Cathedral, Thrissur |
| Nationality: | Indian |
| Religion: | Syro-Malabar Catholic Church |
| Occupation: | Bishop |
Mar John Menachery was the second Bishop of Apostolic Vicariate of Thrissur. He died in 1919 and was interred in the crypt of Our Lady of Lourdes Metropolitan Cathedral, Thrissur.[1]