ICCA may refer to:

Organizations

• Indigenous and Community Conserved Area, areas in which there are close associations between indigenous people or a local community and a specific territory or natural resources

• International Congress and Convention Association, organization in the meetings industry

• International Correspondence Chess Association, now the International Correspondence Chess Federation

• International Council of Chemical Associations

• Inter-parliamentary Coalition for Combating Antisemitism, an international coalition

Other uses

• The International Conference on Clifford Algebras and Their Applications in Mathematical Physics, a triennial conference series in Clifford Algebras

• International Championship of Collegiate A Cappella, an international competition for student-run and -directed a cappella singing groups

• ICGA Journal, formerly ICCA Journal