C100

C100 may refer to:
 * Alcotán C-100, an anti-tank rocket launcher model
 * Chase-Sisley C100-S, a glider
 * Honda Super Cub C100 motorcycle
 * CIOO-FM, a Canadian radio station
 * Equal Remuneration Convention, 1951
 * Canon EOS C100, a digital cinema camera made by Canon
 * Adtranz C-100, a people mover manufactured by Adtranz, now Bombardier Transportation.