Namayan is a barangay in the city of Mandaluyong, Philippines. It is located in the western part of the city near the border with Santa Ana, Manila and Kasilawan and Carmona, Makati, separated from them by the Pasig River. The barangay covers an area of 38.55 hectares, and is bordered by the barangays of Mabini J.P. Rizal and Old Zañiga on the northside, and Vergara on the eastside. According to the 2020 census, it has a population of 7,670 people.