Presidential elections were held in France on 23 April and 7 May 2017. Incumbent president François Hollande of the Socialist Party (PS) was eligible to run for a second term, but declared on 1 December 2016 that he would not seek reelection in light of low approval ratings, making him the first incumbent head of state of the Fifth Republic not to seek reelection. As no candidate won a majority in the first round, a runoff was held between the top two candidates, Emmanuel Macron of En Marche! (EM) and Marine Le Pen of the National Front (FN), which Macron won with a difference of more than 30% of the vote.

François Fillon of The Republicans (LR)—after winning the party's first open primary—and Le Pen of the National Front led first-round opinion polls in November 2016 and mid-January 2017. Polls tightened considerably by late January; after the publication of revelations that Fillon employed family members in possibly fictitious jobs in a series of politico-financial affairs that came to be colloquially known as "Penelopegate", Macron overtook Fillon to place consistently second in first-round polling. At the same time, Benoît Hamon won the Socialist primary, entering fourth place in the polls. After strong debate performances, Jean-Luc Mélenchon of La France Insoumise (FI) rose significantly in polls in late March, overtaking Hamon to place just below Fillon.

The first round was held under a state of emergency that was declared following the November 2015 Paris attacks. Following the result of the first round, Macron and Le Pen continued to the 7 May runoff. It was the first time since 2002 that a National Front candidate continued to the second round and the first time in the history of the Fifth Republic that the runoff did not include a nominee of the traditional left or right parties; their combined share of the vote from eligible voters, at approximately 26%, was also a historic low.

Estimations of the result of the second round on 7 May indicated that Macron had been elected by a decisive margin; Le Pen immediately conceded defeat. After the Interior Ministry published preliminary results, the official result of the second round was proclaimed by the Constitutional Council on 10 May. Overall, 43.6% of the registered electorate voted for Macron; in 2002, by contrast, two-thirds of eligible voters voted against then-FN candidate Jean-Marie Le Pen. When Macron took office on 14 May, he became the youngest holder of the presidency in French history and the youngest French head of state since Napoleon. He named Édouard Philippe as Prime Minister the next day. The initial government was assembled on 17 May; legislative elections on 11 and 18 June gave En Marche! a substantial majority.

The President of the French Republic and French Co-Prince of Andorra is elected to a five-year term in a two-round election under Article 7 of the Constitution: if no candidate secures an absolute majority of votes in the first round, a second round is held two weeks later between the two candidates who received the most votes. In 2017, the first and second rounds were held 23 April and 7 May.

Each presidential candidate must meet a specific set of requirements in order to run. They must be a French citizen of at least 18 years old. It is also necessary for candidates to be on an electoral roll, proving their eligibility to vote.

To be listed on the first-round ballot, candidates must secure 500 signatures (often referred to as parrainages) from national or local elected officials from at least 30 different departments or overseas collectivities, with no more than a tenth of these signatories from any single department. The official signature collection period followed the publication of the Journal officiel on 25 February to 17 March. The collection period had initially been scheduled to begin on 23 February, but a visit by Prime Minister Bernard Cazeneuve to China on that date forced a delay. French prefectures mailed sponsorship forms to the 42,000 elected officials eligible to give their signature to a candidate, which must then be delivered to the Constitutional Council for validation. Unlike in previous years, a list of validated signatures was posted on Tuesday and Thursday of every week on the council's website; in the past, signatories were published only after the official candidate list had been verified after the end of the collection period. The end of the signature collection period also marked the deadline for the declaration of personal assets required of prospective candidates. The final list of candidates was declared on 21 March.

The Conseil supérieur de l'audiovisuel (CSA) ensured that all candidates receive equal time in broadcast media "under comparable programming conditions" from 19 March onward. The CSA warned on 8 March that the amount of speaking time broadcasters had given Fillon and his supporters was "unusually high", even given the unusual circumstances surrounding his candidacy. After the official start of the campaign on 10 April, the CSA strictly enforced equal time in broadcast media. Campaigning for the first round of the election ended at midnight on 21 April, two days before the vote. The Constitutional Council verified the results of the first round between the 24–26 April and officially certified the vote tallies on 26 April, with the same procedure being used for the second round. The new President of the French Republic was set to be proclaimed on 11 May and undergo their investiture ceremony on 14 May at the latest.