EJC may refer to:
- European Jewish Congress, a representative body of European Jewish communities
- Eglise de Jésus-Christ, an independent Christian church in Congo
- Electronic Journal of Combinatorics, a peer-reviewed academic journal specializing in combinatorics
- European Juggling Convention, an annual juggling festival
- European Junior Championships in various sports
- European Judo Championships, an annual event
- Exon junction complex, formed on mRNA after splicing