C. Thiruvenkatacharya (died 1893) was an Indian civil servant and administrator in the Madras Presidency.
He served as the Diwan of Cochin kingdom from 1890 to 1893.
Thiruvenkatacharya started as a zillah judge in the Madras Presidency.
In 1890,he was appointed as Diwan of Cochin kingdom and served till 1893.
He also brought out reforms in the Postal system.