Incumbent Erico Aumentado died while in office on December 25, 2012. The Nationalist People's Coalition named his son Aris as their substitute.[2] The younger Aumentado tangled with his father's perennial rival, former three-term congressman and the incumbent Trinidad mayor Roberto Cajes.
Philippine House of Representatives election at Bohol's 2nd district
Incumbent Arthur Yap ran unopposed for the second consecutive election after his opponent, Loboc mayor, Leon Calipusan, backed out for personal reasons.[3]
Philippine House of Representatives election at Bohol's 3rd district
Incumbent Ramon Durano ran for the Danao city vice mayoralty instead; his brother, former tourism secretary Joseph Ace Durano ran under the Liberal Party banner.
Philippine House of Representatives election at Cebu's 5th district
Gabriel Luis Quisimbing was the incumbent, his opponent was former congresswoman Nerissa Corazon Soon-Ruiz running under the United Nationalist Alliance banner.
Philippine House of Representatives election at Cebu's 6th district
Incumbent Rachel del Mar did not run; her party named Raul del Mar as their nominee. Her primary opponent was actress Annabelle Rama. Rama announced her candidacy for Congress via Twitter in May 2012, debunking rumors that she was running for the city council.[4] Cebu City mayor Michael Rama, her cousin, confirmed Rama's candidacy.[5] The PDP–Laban, one of the parties within the United Nationalist Alliance, adopted Mayor Rama's ticket as their candidates in the elections, including Annabelle Rama.[6]
The Commission on Elections disqualified Junan Arenasa, Pablo Dorinio and Eliseo Tumulak for being "nuisance candidates".[7]
Philippine House of Representatives election at Cebu City's 1st district
Incumbent Tomas Osmeña ran for mayor against incumbent Cebu City mayor Mike Rama. His party nominated Rodrigo Abellanosa for the South District congressional post.
Philippine House of Representatives election at Cebu City's 2nd district
Each of Negros Oriental's three legislative districts elected representatives to the House of Representatives. The candidates with the highest number of votes won the seats.
Orlando B. Fua Sr. was the incumbent on his second term but decided not to run. Instead his party named his son Governor Orlando Fua Jr. as their nominee.
Winning candidate Jose Ray Pernes died May 12, one day before election, because of a heart attack. He was substituted by his wife Marie Anne Pernes.
Philippine House of Representatives election at Siquijor's district