Santa Maria, officially the Municipality of Santa Maria, is a municipality in the province of Davao Occidental, Philippines. According to the 2020 census, it has a population of 57,526 people. Santa Maria was created as a municipality of Davao on June 18, 1966 out of 12 barangays and 15 barrios from Malalag, by virtue of Republic Act No. 4743. Basiawan was designated as the municipal seat. On May 8, 1967, the municipality became part of Davao del Sur following Davao's division under Republic Act No. 4867.