SINN Fein has selected Maoliosa McHugh to replace Michaela Boyle as West Tyrone MLA.
Ms Boyle won a seat on Fermanagh and Omagh District Council last week leading her to give up her Assembly seat.
Mr McHugh, a former mayor of Derry City and Strabane District Council, lost his Derg seat on the council at last Thursday’s elections.
Sinn Fein’s West Tyrone MP Orfhlaith Begley made the announcement on Twitter.
She tweeted: “Delighted that Maolíosa McHugh is our new MLA for West Tyrone. A true republican with a wealth of knowledge and experience. Comhghairdeas Maolíosa!
“I also want to pay tribute to our outgoing MLA Micheala Boyle one of the most hard working elected representatives.”