Marikina's 1st congressional district is one of the two congressional districts of the Philippines in the city of Marikina. It has been represented in the House of Representatives of the Philippines since 2007. The district was created in 2006 following the passage of Republic Act No. 9364 which amended the 1996 Marikina City Charter. It consists of the southern Marikina barangays of Barangka, Calumpang, Industrial Valley Complex, Jesus de la Peña, Malanday, San Roque, Santa Elena, Santo Niño and Tañong. It is currently represented in the 19th Congress by Maan Teodoro of the United Nationalist Alliance (UNA).

Barangka is an administrative division of Marikina, Metro Manila, the Philippines. It is an urban barangay part of the 1st district of Marikina and is one of the oldest barangays in Marikina.