An election for the Northern Ireland Assembly was held on 5 May 2022. It elected 90 members. It was the seventh assembly election since the establishment of the assembly in 1998. The election was held three months after the Northern Ireland Executive collapsed due to the resignation of the First Minister, Paul Givan of the Democratic Unionist Party (DUP), in protest against the Northern Ireland Protocol.

In the sixth assembly, elected in 2017, eight parties had Members of the Legislative Assembly (MLAs): the DUP, latterly led by Jeffrey Donaldson; Sinn Féin, led by Michelle O'Neill; the Ulster Unionist Party (UUP), latterly led by Doug Beattie; the Social Democratic and Labour Party (SDLP), led by Colum Eastwood; Alliance, led by Naomi Long; the Greens, led by Clare Bailey; People Before Profit (PBP), which has a collective leadership; and the Traditional Unionist Voice (TUV), led by Jim Allister.

Sinn Féin became the largest party, marking the first time an Irish nationalist/republican party won the most seats in an assembly election in Northern Ireland, and has the right to nominate Northern Ireland's first nationalist First Minister. The DUP's vote share dropped almost 7% and it lost three seats; despite this, unionists won two more seats than nationalists—37 seats to 35—and a marginally higher share of the vote. Alliance made large gains, as the only party to gain seats at the election, overtaking the UUP and the SDLP to become the third-largest party in the Assembly. The Greens lost both seats they held before the election and were unrepresented in the Assembly for the first time since 2003.

As Northern Ireland's government is based on power-sharing, the DUP (the largest unionist party) was required to nominate a deputy First Minister for the Executive to be formed and the Assembly to conduct business; however, they refused to do so due to their opposition to the Northern Ireland Protocol and post-Brexit trading arrangements. It wasn't until 31 January 2024 that the DUP and UK Government announced a deal had been struck to revive the Executive, and on 3 February 2024 the Assembly swore in Sinn Féin First Minister Michelle O'Neill and DUP deputy First Minister Emma Little-Pengelly.

In May 2013, Theresa Villiers, Secretary of State for Northern Ireland, announced that the next Assembly election would be postponed to May 2016, and would be held at fixed intervals of five years thereafter. Section 7 of the Northern Ireland (Miscellaneous Provisions) Act 2014 specifies that elections will be held on the first Thursday in May on the fifth calendar year following that in which its predecessor was elected, which would be 5 May 2022; however, there are several circumstances in which the Assembly can be dissolved before the date scheduled by virtue of section 31(1) of the Northern Ireland Act 1998.

In June 2016, the UK voted to leave the European Union, although Northern Ireland voted to remain. The process of withdrawal held particular uncertainty for Northern Ireland due to the potential for customs on the UK–Ireland border. Meanwhile, an early election was held to the Northern Ireland Assembly in March 2017. After the election, Sinn Féin stated that it would not return to a power-sharing arrangement with the Democratic Unionist Party without significant changes in the party's approach, including Arlene Foster not becoming First Minister until an investigation into the Renewable Heat Incentive scandal was complete. Over the next few years, the deadline to form an executive was repeatedly extended as negotiations continued with no success.

On 18 April 2017, Theresa May, Prime Minister of the UK, called for a general election to be held on 8 June 2017. The Conservative Party lost its parliamentary majority and sought a confidence and supply agreement with the DUP in order to remain in government. The DUP and the Conservatives reached an agreement on 26 June.

In 2019, the UK experienced significant political turbulence over the question of how to proceed with Brexit. The European Parliament election in May 2019 saw the Alliance Party take the third MEP place from the Ulster Unionist Party (UUP). DUP support for the Conservative government broke down with disagreements over the government's Brexit plans. The Conservative government sought a new election, held in December 2019, which they won with a large majority. In Northern Ireland, for the first time, traditional Irish nationalist parties won more seats than traditional unionist parties. The SDLP and Alliance returned to the House of Commons, while the DUP and Sinn Féin saw vote share declines of more than 5%.