Bandaranaike International Airport (BIA) (Sinhala: බණ්ඩාරනායක ජාත්‍යන්තර ගුවන්තොටුපළ, romanized: Bandāranāyaka Jātyantara Guvantoṭupaḷa; Tamil: பண்டாரநாயக்க சர்வதேச விமான நிலையம், romanized: Paṇṭāranāyakka Carvatēca Vimāṉa Nilaiyam) (commonly known as Colombo International Airport, Colombo–Bandaranaike International Airport, and locally as Katunayake International Airport) (IATA: CMB, ICAO: VCBI) is the main international airport serving Sri Lanka. It is named after former Prime Minister S. W. R. D. Bandaranaike (1899–1959) and is in the suburb of Negombo, 32.5 kilometres (20+1⁄4 miles) north of the nation's capital and commercial center, Colombo.

Solomon West Ridgeway Dias Bandaranaike, also known as "The Silver Bell of Asia", was a Ceylonese statesman who served as the fourth Prime Minister of the Dominion of Ceylon, serving from 1956 until his assassination. The founder of the left-wing and Sinhalese nationalist Sri Lanka Freedom Party, his tenure saw the country's first left-wing reforms.