Tineg, officially the Municipality of Tineg (Ilocano: Ili ti Tineg; Adasen: Ili niye Tineg; Tagalog: Bayan ng Tineg), is a municipality in the province of Abra, Philippines. According to the 2024 census, it has a population of 5,059 people.

It is believed that during the 16th century, Tineg was founded by Dao-ayan and his wife, who found their way to the headwaters of the Tineg River upon crossing the Cordillera from the Apnaya in the Cagayan Valley. During the Spanish era, Tineg was placed under the town of Dolores. However, in 1918, after Abra officially became a province, Tineg became its own separate municipality. Alawa used to be a separate municipality in the same year but was eventually annexed into Tineg after independence.

During World War II, the people of Tineg contributed greatly to the anti-Japanese resistance. In reprisal for the death of the Japanese soldier Okabe on 2 January 1943, Japanese forces massacred 93 civilians in Tineg and Lanek on 31 March of the same year. Following this act, most people from Tineg and Lanek began hiding in the jungles.

During the martial law period, the New People's Army began recruiting villagers from the towns of Tineg, Lacub and Malibcong against the timber company Cellophil, which was destroying the natural resources of the region. The region eventually became a hotbed of insurgency, and the Philippine Constabulary responded by wiping out the small communist band in August 1979, killing 5 and capturing 4 of them, thereby hindering communist activities in the region for a long time.

On October 29, 2002, Mayor Clarence Benwaren was assassinated by a gunman while he was attending a wedding ceremony in Calauan, Laguna.

According to the Philippine Statistics Authority, the municipality has a land area of 744.80 square kilometres (287.57 sq mi)  constituting 17.88% of the 744.80-square-kilometre- (287.57 sq mi) total area of Abra. Tineg boundaries will be province of the Apayao to the northeast and province of the Ilocos Norte to the north and northwest. Tineg is located at 17°47′N 120°56′E / 17.78°N 120.94°E / 17.78; 120.94.

Tineg is situated 73.49 kilometres (45.66 mi) from the provincial capital Bangued, and 479.33 kilometres (297.84 mi) from the country's capital city of Manila.

The climate is characterized by 2 distinct seasons. The dry season which occurs from November to April, is marked by daily blue skies and clear starry nights and the wet season for the rest of the year with high rainfall intensities accompanied by storms and typhoons. ^{[unreliable source?]}