Elmer Labog

Elmer "Ka Bong" Labog
Labog during the 2022 elections
Chairperson of Kilusang Mayo Uno
In office
2003 – June 30, 2025
Preceded byCrispin Beltran
Succeeded byJerome Adonis
Personal details
BornElmer Calagui Labog
(1955-08-03) August 3, 1955
PartyBagong Alyansang Makabayan
Other political
affiliations
Kilusang Mayo Uno
SpouseMarinette Villafuerte Labog
Alma materUniversity of the Philippines Diliman (BS)
OccupationLabor leader, activist
ProfessionBartender
Preview warning: Page using Template:Infobox officeholder with deprecated parameter "otherparty". Replace with "other_party".
Preview warning: Page using Template:Infobox officeholder with deprecated parameter "nationality". It should be removed.

Elmer "Ka Bong" Calagui Labog (born August 3, 1955) is a trade union and labor activist from the Philippines who was the national chairperson of Kilusang Mayo Uno (KMU), the largest trade union in the country from 2003 to 2025. He currently serves as its Chairperson Emeritus. He was also the vice-chairperson of Bagong Alyansang Makabayan and the chairperson of International League of Peoples' Struggle in the Philippines. During the 2022 Philippine Senate election, he ran for senator under Makabayan.