Conrado Dumlao Yap (January 22, 1921  – April 23, 1951) was an officer in the Philippine Army who served during the Second World War and the Korean War.

He was a recipient of the Philippines' highest military award, the Medal of Valor, which he was posthumously awarded for his actions of valor and courage in the Battle of Yultong. Yap was one of the 1,367 Filipino troops composing the 10th Battalion Combat Team of the Philippine Expeditionary Forces to Korea (PEFTOK), first of the five Philippine Army Battalion Combat Team's contingent of United Nations Command forces that fought in the Korean War (1950–1953).

He was killed in action in the early morning hours of 23 April 1951 in the Battle of Yultong during a successful counterattack against Chinese forces that overran his hilltop position in territory which currently belongs to South Korea. Yap was posthumously the most decorated Filipino serviceman of the Korean War, receiving medals from the US, South Korea and the Philippines.

Yap was born on January 22, 1921, in Candelaria, Zambales. He was a graduate of the Philippine Military Academy class of 1943

In 1949, he graduated of the U.S. Army Armor School, then at Fort Knox, KY. Then became Captain of the 10th BCT - Tank Company, an Army heavy tank company in 1950. When the 10th BCT arrived in Busan, Korea, they didn't take their tanks with them as the US was going to supply them with armor when they arrived. Their waiting tanks (17 M4 Shermans and one M10 tank destroyer) were destroyed when the communist North Korean army pushed back the UN forces further down south of the Korean peninsula. The only tanks available were seven M24 Chaffee light tanks which was designated to the 10th BCT - Recon Company. Capt Yap, Tank Company was resignated as Heavy Weapons Company which was equipped with heavy to light automatic machine guns.

After the Chinese entered the Korean War in November 1950, they launched a major offensive the following year that saw Yap's unit, the 10th Battalion Combat Team (10th BCT) opposite four Chinese divisions numbering about 40,000 men. Close to midnight of 23 April 1951, the Communist Chinese forces attacked a Puerto Rican regiment positioned on the 10th BCT's western flank. As the Puerto Ricans fell back to re-consolidate their lines, the Chinese began to advance up the exposed Filipino unit's flank.

A platoon of soldiers from the 10th BCT Tank Company fighting as infantry - Heavy Weapons Company under the command of Lt. Jose Artiaga positioned themselves on a hill on the 10th BCT's flank overlooking the Korean village of Yultong in Yeoncheon County. The Chinese attacked them with superior numbers but Artiaga's unit made a stand. This bought time for his company commander, Captain Yap to launch a counterattack to rescue Artiaga and his platoon from the Chinese. Both Artiaga and Yap were killed in action. However, that action saved the platoon from total annihilation and stopped the Chinese advance from reaching the exposed flank of the 10th BCT.

Lt. Jose Artiaga was conferred the United States Distinguished Service Cross as a consequence of his actions at the Battle of Yultong.