Pedro Antonio Amador ( 1735 – 8 May 1824) was a Spanish sergeant of the Presidio of Loreto who was present at the establishments of the pueblos of San Diego and Monterey in Alta California.
Amador was born in Cocula, Nueva Galicia (present-day Jalisco, Mexico), the son of José Amador and MarÃÂa Josefa Carpio.
He had two children with his first wife, MarÃÂa de la Luz Ruiz.
Before 1778, at Mission Loreto, he married MarÃÂa Ramona Noriega (ca. 1760-1802), also widow, with whom he had eleven children who were taught to read and write by their mother.
After Ramona's death in 1802, on 12 April 1804, at Mission Santa Clara, he married the also widow Teresa Pinto.
His son, José MarÃÂa Amador, became the owner of Rancho San Ramón. Amador County was named in his honor.