Houston
- Burt, Marie Anita
- Bush, Barbara Pierce
- Bush, George Herbert Walker
- Butler, Chad Lamont [Pimp C]
- Bybee, Charles L.
- Caldwell, Booker Taliaferro
- Callihan, Mosis A.
- Cameron Iron Works, Houston
- Camp Logan
- Campbell, Benjamin
- Car-Stable Convention
- Carpenter, David
- Carpenters Bayou
- Carper, William M.
- Carroll, Benajah Harvey, Jr.
- Carroll, James Judson
- Carter, Katherine Pollard
- Carter, Samuel Fain
- Castillo, Leonel Jabier
- Catacombs
- Catney, Dave
- Caudill, William Wayne
- Cave, Eber Worthington
- Cernan, Eugene Andrew [Gene]
- Cerracchio, Enrico Filiberto
- Chandler, Asa Crawford
- Chapman, Robert Martin
- Charity Guild of Catholic Women
- Chase, John Saunders
- Chawla, Kalpana
- Chenier, Clifton
- Cherry, Emma Richardson
- Christian, Benjamin Theodore [Ben]
- Christian, Samuel Patrick
- Church of the Annunciation, Houston
- Clark Seminary
- Clark, James Anthony
- Classical Music
- Clayton, William Lockhart
- Clear Lake City, TX
- Cline, Henry B.
- Cline, Raoul Rene Daniel
- Cloverleaf, TX
- Club Cultural Recreativo México Bello
- Club Terpsicore
- Coastal Corporation
- Cobb, Arnett Cleophus
- Cocke, James Decatur
- Codwell, John Elihue, Sr.
- Cody, Claude Carr, Jr.