Malabo (pronounced /məˈlɑːboʊ/) is the capital and the largest city of Equatorial Guinea, located on the northern coast of Bioko Island (formerly Fernando Pó) on the rim of a sunken volcano..

Despite its status as the capital of Equatorial Guinea for several decades, Malabo's street network remains poorly developed. Malabo itself has few paved roads leading into it, and fewer than one hundred paved and developed streets. Many of the street names reflect an African nationalist or anti-colonial theme, with names such as "Independence Avenue" or "Patrice Lumumba Road" being main roads. The few large roads not named for an African nationalist ideal or person are named for cities in Equatorial Guinea or other places or countries in Africa, as well as the road leading to the presidential palace. The palace and grounds consume a substantial part of the eastern side of Malabo, and are off-limits. The heart of the city is the colonial cathedral at Independence Place. Many buildings in the city from the Spanish colonial era are still standing.

The south of Malabo is bordered by the Rio Consul. Across this lies the hospital to the southeast. To the west is the recently renovated airport. The coastal northern region of the city is pierced by headlands and bays. The largest headland is the crescent-shaped Tip of African Unity behind the presidential palace. Encompassing the entire eastern side of Malabo Bay, it is almost as long as Malabo is tall. Malabo is part of a wider bay that represents most of the northern coast of Bioko; it stretches from Europe Point in the west (home to the airport), to barren lands in the east.

Notable buildings in Malabo include Malabo Cathedral, Malabo Government Building and the Malabo Court Building. The city is served by Malabo International Airport, while ferries sail from its port to Douala and Bata. The city contains several notable hotels including Sofitel Malabo President Palace, Hotel Ureka, Hotel Bahia and Hotel Impala.

Malabo has been significantly affected by Teodoro Obiang Nguema Mbasogo's growing co-operation with the oil industry. The country's production has reached 360,000 barrels per day (57,000 m3/d) as of 2004, an increase which led to a doubling of the city's population, but for the vast majority, very little of that wealth has been invested in development.