| Honorific-Prefix: | The Honourable |
| Fredrick Mbiti Gideon Mati | |
| Honorific-Suffix: | EBS |
| Order: | 2nd |
| Office: | Speaker of the National Assembly of Kenya |
| Term Start: | 6 February 1970 |
| Term End: | 1988 |
| Constituency: | Kitui County |
| Predecessor: | Humphrey Slade |
| Successor: | Moses Kiprono arap Keino |
| Office2: | Minister for Health and Housing |
| Term Start2: | 1963 |
| Term End2: | ? |
| Office3: | Member of the Legislative Council of Kenya |
| Term Start3: | 1961 |
| Term End3: | 1963 |
| Constituency3: | Kitui North |
| Birth Place: | Kitui, Kenya |
| Death Place: | Nairobi, Kenya |
| Nationality: | Kenyan |
| Party: | KANU |
Fredrick Mbiti Gideon Mati was the first African and longest serving Speaker of the Kenyan Parliament, having been elected speaker on 6 February 1970, taking over from Humphrey Slade, and serving until April 1988.[1] [2] [3]
Mati was the Minister for Health and Housing in the coalition government prior to Kenya's independence in 1963.[1] He was also a member of the Legislative Council of Kenya from 1961 and the first MP for Kitui North, now current Kitui County, having studied at Migwani D.E.B primary school, serving from 1963 to his election as Speaker in 1970.[1]
He was one of the first two people from Ukambani to receive a university degree.[1]