Carey Allen Trimble (September 13, 1813 – May 4, 1887) was a U.S. Representative from Ohio.
Born in Hillsboro, Ohio, Trimble attended Pestalostian School in Philadelphia, Pennsylvania, and Stubb's Classical School in Newport, Kentucky. He graduated from Ohio University at Athens, Ohio in 1833 and from Cincinnati Medical College (now part of University of Cincinnati) in 1836. He taught for four years, and practiced medicine in Chillicothe, Ohio.
Trimble was elected as a Republican to the Thirty-sixth and Thirty-seventh Congresses (March 4, 1859 – March 3, 1863). He was an unsuccessful candidate for reelection. He resumed medical practice. He moved to Columbus, Ohio, where he died May 4, 1887. He was interred in Grandview Cemetery, Chillicothe, Ohio.