Acapulco de Juárez (Spanish: akaˈpulko de ˈxwaɾes), commonly called Acapulco, is a city, municipality and major seaport in the state of Guerrero on the Pacific coast of Mexico, 380 kilometres (240 mi) south of Mexico City. Acapulco is located on a deep, semicircular bay and has been a port since the early colonial period of Mexico's history. It is a port of call for shipping and cruise lines running between Panama and San Francisco, California, United States. The city of Acapulco is the largest in the state, far larger than the state capital Chilpancingo. Acapulco is also Mexico's largest beach and balneario resort city.

The city is one of Mexico's oldest beach resorts, which came into prominence in the 1940s throu 1960s as a getaway for Hollywood stars and millionaires. Acapulco is still famous and still attracts many tourists, although most are now from Mexico itself. The resort area is divided into three parts: The north end of the bay and beyond is the "traditional" area, which encompasses the area from Parque Papagao through the Zocalo and onto the beaches of Caleta and Caletilla, the main part of the bay known as "Zona Dorada" (golden zone in Spanish), where the famous in the mid-20th century vacationed, and the south end "Diamante" (diamond in Spanish) which is dominated by newer luxury high-rise hotels and condominiums.

The name "Acapulco" comes from Nahuatl language Aca-pōl-co, and means "where the reeds were destroyed or washed away". The "de Juárez" was added to the official name in 1885 to honor Benito Juárez, former President of Mexico (1806–1872). The seal for the city shows broken reeds or cane. The island and municipality of Capul, in the Philippines, derives its name from Acapulco; Capul was the western end of the trans-Pacific sailing route from Acapulco to what was then a Spanish colony.