The following scholastic honor societies maintain chapters at UCI for high-achieving students who major in the specific disciplines and/or who are pursuing certain graduate/professional goals:
- Alpha Epsilon Delta (National Premedical Honors Society – all majors)
- Alpha Eta Mu Beta (National Biomedical Engineering Honor Society)
- Alpha Kappa Delta (Sociology majors)*
- Chi Epsilon (Civil & Environmental Engineering majors)
- Dobro Slovo (National Slavic Honors Society)
- Eta Kappa Nu (Electrical & Computer Engineering majors)
- Eta Sigma Phi (Classics majors)
- Golden Key Honor Society (Top 15% of all majors)
- Lambda Alpha Kappa (Anthropology majors)
- Omega Chi Epsilon (Chemical Engineering majors)
- Omicron Delta Epsilon (Economics majors)*
- Phi Alpha Theta (History majors)
- Phi Beta Kappa (Outstanding scholars in the liberal arts and sciences)
- Phi Lambda Upsilon (Chemistry majors)
- Pi Gamma Mu (Social Science majors)
- Pi Mu Epsilon (Math majors)
- Pi Sigma Alpha (Political Science majors)
- Pi Tau Sigma (Mechanical & Aerospace Engineering majors)
- Psi Chi (Psychology majors)
- Sigma Delta Pi (National Hispanic Honor Society)*
- Sigma Pi Sigma (Physics majors)
- Sigma Xi (Outstanding scholars in Research)*
- Sigma Iota Rho (International Studies)
- Tau Beta Pi (Engineering majors)
- Tau Sigma (Transfer students)
* May be inactive