|Region||National Capital Region|
|District||4th District of Quezon City|
|Established||June 25, 1975|
|• Barangay Captain||Jesus N. Lipnica III|
|Time zone||UTC+8 (PST)|
Pinyahan, sometimes spelled Piñahan, is a barangay of Quezon City, the Philippines.
Barangay Pinyahan was previously part of Central District Diliman. Central District Diliman was divided into two separate entities, namely Barangay Central and Pinyahan.
Pinyahan means "a place where pineapple is grown" in Tagalog. Prior to its subdivision by the People's Homesite and Housing Corporation, the land which occupies present-day Pinyahan was a popular place for cultivating pineapples since the 1930s, thus the name of the barangay.
Several hospitals are based in Pinyahan including Lung Center of the Philippines, National Kidney and Transplant Institute (NKTI), Urology Center of the Philippines and the Armed Forces of the Philippines Medical Center along V. Luna Avenue.
Pinyahan Elementary School and Flora A. Ylagan High School are public schools based in Pinyahan. The AFP Medical Service School, is located within the Armed Forces of the Philippines Medical Center.
The barangay celebrates its fiesta every May 15. The barangay patron saint is San Isidro Labrador.
The barangay is also the main mailing address of the Free Legal Assistance Group (FLAG), which is the largest and most prestigious human rights legal network in the country.
On June 22, 1963, RA 3590 known as the Revised Barrio Charter amending RA 2370 was enacted expanding the scope of the barrio power. Membership in the council was increased to include a barrio executive as Barrio Captain and six councilmen and granting powers to the barrio officials. Barangay Pinyahan has been originally a part of Central District Diliman and Central District was divided into two which became Barangay Central and Pinyahan. The area of Pinyahan has been popularly known as a place for growing abundant pineapples since the early 1930s until it was subdivided in 1948 by the PHHC.