Caleb Robinson Ayer (May 22, 1813 – October 5, 1883) was an American politician from Maine.
[1] Ayer graduated from Dartmouth College in 1834 and was admitted to the bar in 1838.
[2] He was an associate of Nathan Clifford and moved to Cornish in York County in 1841.
In 1856, he served as the Secretary of State of Maine under Governor Samuel Wells.
[2] The Caleb R. Ayer House in Cornish is listed on the National Register of Historic Places.