AJC may refer to:
- Agreement on Journey Continuation, an agreement between European rail operators to allow passengers in case of a missed connection
- Allen Jack+Cottier (AJ+C), an architectural practice
- American Jewish Committee, an advocacy group "widely regarded as the dean of American Jewish organizations"
- American Jewish Congress, an association of Americans organized around Jewish interests
- Anderson Junior College, a two-year school in Singapore
- Anti-jitter circuit, an electronic device designed to reduce jitter in a regular pulse signal
- The Atlanta Journal-Constitution, an American newspaper in Georgia
- Atlantic Jewish Council, a Canadian partner of the Centre for Israel and Jewish Affairs
- Auschwitz Jewish Center in Oświęcim, a museum and cultural center in Oświęcim, Poland
- Australian Jockey Club, a predecessor racing organization to the Australian Turf Club
- Australia-Japan Cable, a submarine telecommunications cable system
- Academy of Journalism and Communication, a university in Vietnam