Alex Maskey is a former Northern Irish politician who served as Speaker of the Northern Ireland Assembly from 2020 to 2024 and was the first member of Sinn Féin to serve as Lord Mayor of Belfast from 2002 to 2003. He was Sinn Féin's longest sitting councillor, representing the Laganbank electoral area of Belfast. He was also an MLA for Belfast West for two periods, and also for Belfast South. He reportedly retired "from frontline politics" in early 2024.

The speaker of the Northern Ireland Assembly is the presiding officer of the Northern Ireland Assembly, elected on a cross-community vote by the Members of the Northern Ireland Assembly. A principal deputy speaker and two deputy speakers are elected to help fulfil the role. The office of Speaker is currently held by the MLA for Belfast South Edwin Poots of the Democratic Unionist Party.