Llanera, officially the Municipality of Llanera (, Ilocano: Ili ti Llanera), is a municipality in the province of Nueva Ecija, Philippines. According to the , it has a population of people.
The town's economy is largely agricultural, with rice as the principal product. It is a land of plains with few creeks, a small dam, and a river - the only bodies of water bisecting the plains. There are no mountain ranges in the municipality.
The principal industrial and commercial activities are related to the production of rice and related products. Minor products include onion growing, cattle raising and vegetable production. The town also known for its "Banuar A Mannalon Festival" it is usually celebrated every first to second week of May.
During World War II, the local military establishment of the main general headquarters and main camp base of the Philippine Commonwealth Army was active in the area from 1942 to 1945. The 2nd Constabulary Regiment of the Philippine Constabulary was activated again from 1944 to 1946, and they were stationed in Llanera. From the clearing operations of the Anti-Japanese Imperial Military Operations in Central Luzon included the province of Pampanga, Nueva Ecija, Tarlac, Bulacan, Zambales and Northern Tayabas (now Aurora) from 1942 to 1945, and aiding various guerrilla groups and the American liberation forces of the U.S. Army and U.S. Army Air Forces and fought against the Japanese Imperial forces.
The town was created in 1954 from territory carved from the three neighboring towns:
Llanera is located near the geographic center of the province. The municipality is traversed by a national road leading to Aurora province. The municipality is bounded by the city of San Jose, the municipalities of Talavera, Rizal, and Natividad.
Llanera is from Cabanatuan, from Palayan, and from Manila.
Llanera is politically subdivided into 22 barangays. Each barangay consist of puroks and some have sitios.
The Llanera Schools District Office governs all educational institutions within the municipality. It oversees the management and operations of all private and public, from primary to secondary schools.