Meiō (明応), also known as Mei-ō, was a Japanese era name (年号,, nengō,; lit. "year name") after Entoku and before Bunki. This period started in July 1492 and ended in February 1501. During this time, the emperors were Go-Tsuchimikado-tennō (後土御門天皇) and Go-Kashiwabara-tennō (後柏原天皇).

| Meiō | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
|---|---|---|---|---|---|---|---|---|---|---|
| 1492 | 1493 | 1494 | 1495 | 1496 | 1497 | 1498 | 1499 | 1500 | 1501 |
| Preceded by: Entoku |
Era or nengō: Meiō |
Succeeded by: Bunki |