| Honorific-Prefix: | His Excellency |
| Bailey Olter | |
| Order: | 3rd President of the Federated States of Micronesia |
| Term Start: | May 11, 1991 |
| Term End: | November 8, 1996 |
| Vicepresident: | Jacob Nena |
| Predecessor: | John Haglelgam |
| Successor: | Jacob Nena |
| Order2: | 2nd Vice President of the Federated States of Micronesia |
| Term Start2: | May 11, 1983 |
| Term End2: | May 11, 1987 |
| President2: | Tosiwo Nakayama |
| Predecessor2: | Petrus Tun |
| Successor2: | Hiroshi Ismael |
| Birth Date: | 27 March 1932 |
| Birth Place: | Mokil Atoll, Pohnpei, South Seas Mandate, Empire of Japan |
| Death Place: | Kolonia, Pohnpei |
| Spouse: | Amalia Nanpei Olter |
Bailey Olter (27 March 1932 - 16 February 1999) was a Micronesian political figure. He was elected to the Senate of Micronesian Congress from Ponape district.[1] He served as Vice President of the Federated States of Micronesia from 1983 to 1987,[2] and as the third president of the Federated States of Micronesia from 1991 to 1996. He suffered a stroke in July 1996 ending his capacity to carry out his office; his Vice President Jacob Nena served the last year of his term.