The 3rd federal electoral district of Quintana Roo () is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of four such districts in the state of Quintana Roo.
It elects one deputy to the lower house of Congress for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the third region.
The 3rd district was created as part of the 2005 redistricting process and was first contested in the 2006 general election.
The current member for the district, elected in the 2024 general election, is Luis Humberto Aldana Navarro of the National Regeneration Movement (Morena).
Under the 2023 districting plan adopted by the National Electoral Institute (INE), which is to be used for the 2024, 2027 and 2030 federal elections, the 3rd district covers the 10 precincts () that make up the municipality of Isla Mujeres and 321 precincts in the neighbouring municipality of Benito Juárez.
The head town (), where results from individual polling stations are gathered together and tallied, is the city of Cancún, the municipal seat of Benito Juárez. The district reported a population of 472,401 in the 2020 Census.
2017âÂÂ2022
2005âÂÂ2017