A constitutional referendum was held in Egypt on 14 and 15 January 2014, with Egyptians abroad voting between 8 and 12 January. The new constitution was approved by 98.1% of voters. Turnout was 38.6%.

President Mohamad Morsi was removed from power during the 2013 Egyptian coup d'état. The timetable established by interim president Adly Mansour envisioned a rapid transition, which initially entailed amending the suspended 2012 constitution.

The process of amending the 2012 constitution began with a committee of 10 legal experts. The draft amendments by the committee of 10 made many notable changes to the text of the 2012 constitution. The committee of 10 completed their work on 20 August 2013.

The second phase of the process included amendments by a committee of 50; those 50 people were announced on 1 September 2013. Amr Moussa was chosen as the chairman of the committee of 50 on 8 September 2013. The draft constitution was given to President Mansour on 3 December 2013.

The Dignity Party backed the constitution. The Free Egyptians Party supported it. The Socialist Popular Alliance Party as well as the Socialist Party of Egypt also supported the constitution. The Popular Current had said that it supported the constitution. The Nour Party said it would support the constitution. Tamarod started a campaign on 5 December 2013 in support of the constitution. The Egyptian Trade Union Federation called on its supporters to vote for the constitution. The National Salvation Front said that it would call for a yes vote on the constitution. The Egyptian Social Democratic Party voted for the constitution.

Khaled Ali, a former presidential candidate, was opposed to the constitution; he stated that it was "inappropriate" for Egypt. The Revolutionary Socialists also expressed their opposition to it. The Road of the Revolution Front announced on 8 January 2014 that it would vote against the constitution. The Freedom and Justice Party and the Islamic Bloc, which had won 65.3% of the vote in Egypt's parliamentary elections in 2011–2012, opposed the new Constitution and the referendum as being the fruits of an illegal military coup.

The Anti-Coup Alliance, which includes the Muslim Brotherhood-linked Freedom and Justice Party, announced on 22 December 2013 that it would boycott the vote. The Strong Egypt Party and the April 6 Youth Movement also indicated that they would boycott the vote. The Strong Egypt Party was initially going to mobilize for a "no" vote, but changed their stance after members of the party were arrested for having posters which supported the "no" campaign.

According to the official results, turnout was 38.9%. Turnout in the constitutional referendum of 2012 had been 32.9%.