<p>Disclosed is a curable composition having excellent curability and storage stability without containing a toxic organotin curing catalyst or a volatile compound. This curable composition enables to obtain a cured product having excellent strength and elongation. Specifically disclosed is a curable composition characterized by containing (A) an organic polymer having a hydrolyzable silyl group in a molecule, (B) an amidine compound, and (C) a compound having a sulfonyl group in a molecule.</p>
