(H.C.) (born 27 August 1942) is a Nigerian politician and retired military officer who served as governor of Adamawa State from 2007 to 2008, and from 2008 to 2014.

[2] His father, Alhaji Hamman-Yero, was a notable merchant and produce buying agent, whose mercantile activities was directly responsible for the establishment of John Holts and Sons Ltd centre at Mayo-Belwa.

Two years later, he was appointed the Deputy Chief of Defence Staff and retired from the Service in September 1993 with the rank of Vice Admiral.

He also got involved in the production of horticultural crops, and his first commercial export of musk melons to Europe using chartered aircraft took place in January 1990.

He is also presently involved in the modern production of dates, passionfruit, banana, pasture development, breeding of goats and fish farming.

In addition, Nyako owns the largest mango farm in the country leading to him being known as Baba Mai Mangoro (BMM).

[5][6] A fresh election was run, and Nyako was reelected with a landslide victory taking all 21 Local Government Areas, resuming office on 29 April 2008.

[10] On 15 July 2014, the governor was impeached as the state House of Assembly deliberated on the report of an investigative panel that probed allegations of financial misconduct against him.

Judge Okon Abang of the Abuja Division of the Federal High Court dismissed the submission in July 2021 before ordering the defense to present its case in October of the same year.

Kennedy (1958-1964) Joseph Edet Akinwale Wey (1964-1973) Nelson Bossman Soroh (1973–1975) Michael Adelanwa (1975–1980) Akintunde Aduwo (1980 - 1983) Augustus Aikhomu (1984–1986) Patrick Koshoni (1986–1990) Murtala Nyako (1990–1992) Dan Preston Omotsola (1992–1993) Suleiman Saidu (1993) Allison Madueke (1993–1994) Mike Akhigbe (1994–1998) Jubril Ayinla (1998-1999) Victor Ombu (1999–2001) Samuel Afolayan (2001–2005) Ganiyu Adekeye (2005–2008) I.I.