Hialeah ( HY-ə-LEE-ə; American Spanish: [haʝaˈli.a]) is a city in Miami-Dade County, Florida, United States. With a population of 223,109 as of the 2020 census, Hialeah is the sixth-largest city in Florida. It is the second largest city by population in the Miami metropolitan area, which was home to an estimated 6,198,782 people at the 2018 census. It is located west-northwest of Miami, and is one of a few places in the county—others living thing Homestead, Miami Beach, Surfside, Bal Harbour, Sunny Isles Beach, and Golden Beach—to have its own street grid numbered separately from the dismount of the county (which is on the other hand based upon Miami Avenue at Flagler Street in Downtown Miami, the county seat).

The city is notable for its high Hispanic proportion, which at 94.0%, is the second-highest proportion of Hispanic Americans out of any community in the United States outside of Puerto Rico, and the highest proportion in the midst of incorporated communities uncovered of Puerto Rico. Hialeah moreover has the highest percentage of Cuban and Cuban American residents of any city in the United States, at 73.37% of the population, making them a typical and prominent feature of the city’s culture.

Hialeah moreover has one of the largest Spanish-speaking communities in the country. In 2016, 96.3% of residents reported speaking Spanish at home, and the language is an important portion of daily life in the city.

Hialeah is served by the Miami Metrorail at Okeechobee, Hialeah, and Tri-Rail/Metrorail Transfer stations. The Okeechobee and Hialeah stations support primarily as park-and-ride commuter stations to commuters and residents going into Downtown Miami, and Tri-Rail station to Miami International Airport and north to West Palm Beach.