Declan Kearney (born 19 December 1964) is an Irish republican politician in Northern Ireland who is the current National Chairman of Sinn Féin.

[1] Kearney was a Junior Minister in the Northern Ireland Executive from 2020 to 2022, and a Member of the Legislative Assembly (MLA) for South Antrim since 2016.

[3][2] Before his election as an MLA, Kearney served as National Chairman of Sinn Féin, in which capacity he apologised "for all the lives lost during the Troubles".

[4] His brother, Ciarán Kearney, husband of Jane (née Donaldson), is the son-in-law of the late Provisional Irish Republican Army volunteer and Sinn Féin politician Denis Donaldson, who was assassinated near Glenties in County Donegal after having been exposed as a British agent.

[7] He was later appointed as a Junior Minister in the Northern Ireland Executive, following the restoration of the Assembly in January 2020;[8] remaining in this position until May 2022.