Westmont Clubs
| Club Name | Room | Day/s Club Meets | Time | Purpose of Club | Advisor |
| Anime Club | 34 | (A-Day) Fridays | Lunch | To discuss and practice Anime art | Ms. Cruze |
| Art Club | 8 | Tuesday | Lunch | To learn and develop art skills | Mr. Czech |
| Band/Music | 57 | A Days | 2:15* | To develop musical skills | Mr. Naylor |
| Black Student Union | 10 | Wednesdays | Lunch | To build unity/bring students together | Ms. Matsui+ |
| Breakdance Club | Gym | Wednesdays & Thursdays | Lunch | To breakdance | Ms. Garret |
| Cancer Awareness Society | 63 | Thursdays | Lunch | To raise awareness of issues surrounding cancer | Ms. Barnes |
| Chess | 44 | Mondays | Lunch | To play/compete in chess | Mr. Anderson |
| Creative Writing Club | 4 | Tuesday | Lunch | To practice writing skills with an emphasis on having work published. | Ms. Kile-Herchkorn |
| CSF/Honor Roll | 28 | Exec Board meets (in rooom 53) A-day Tuesdays | Lunch* | To recognize students for academic acheivement and community service | Ms. Heinrichsen & Ms. Walton |
| Drama Club/Thespian Society | 3 | Thursdays | Lunch* | To share, promote & celebrate the art of Theatre | Mr. Bengford |
| Ecology Club | 61 | Wednesdays | 2:15* | To make the campus/world a greener place | Mr. Wallace |
| Fashion Club | 11 | Wednesdays | Lunch | To promote interest in fashion | Ms. Churchill |
| Fellowship of Christian Athletes | 15 | Tuesdays | Lunch | To provide Christian support for athletes | Ms. Torrecillas** |
| French Club | 27 | Wednesday | Lunch | To promote French culture | Ms. Waclawek |
| Future Farmers of America | Ag Farm | First Thursday of the month at 7:00 pm | To prepare to be in the world of agriculture | Mr. Duarte | |
| Gay-Straight Alliance | 64 | Tuesday | Lunch | To support LGBT students, and to fight against homophobia & transphobia on campus | Ms. Ohana |
| Habitat for Humanity | TBD | A-day Wednesday | Lunch | To aid in the building of homes for the less fortunate | TBD |
| Impact | TBD | See student-leaders for details | To connect Christians on campus | TBD** | |
| Interact | 24 | Wednesdays | Lunch | To serve the community and the world | Ms. Tighe |
| Jewish Student Union | 49 | To unite Jews and non-Jews | Ms. Peck** | ||
| Journalism | 58 | 5th Period | 8:25 | To perfect writing skills while creating the Shield | Mr. Evans |
| Key Club | 60 | Fridays | Lunch | To provide service to the community | Mr. Yang |
| LIFE Crew | 41 | See advisor for details | TBD | To support freshman excellence in academics | Mr. Parks |
| Math Competitions | 17 | See advisor for details | TBD | To engage in math-centered contests | Ms. Spiridon |
| MEChA | 47 | Wednesdays | Lunch | To connect Latinos on campus | Mr. Garcia |
| Project Cornerstone | 29 | Mondays | Lunch | To end bullying, racism, stereotyping and prejudice | Ms. LaBouff |
| Red Cross | 6 | B-day Thursdays | Lunch | To provide community service opportunities | Ms. Frazer |
| Robotics Club | 65 | Tuesday | Lunch | To build skills in engineering and programming by building a robot and entering competitions | Mr. Taylor |
| Rocketry Club | 65 | Thursdays | Lunch | To have fun buidling flying rockets | Mr. Taylor |
| Spanish Club | 49 | (A-Day) Wednesdays | Lunch | To share passion for Spanish language and related cultures | |
| Speech and Debate | 76 | Wednesdays | Lunch* | To improve speaking skills through interscholastic competition | Mr. Pinza |
| Surf Club | 8 | Wednesdays | Lunch | To discuss surfing | Mr. Poppinga+ |
| World of Difference Peer Trainers | 23 | See advisor for details | To train students to educate each other | Ms. Wallace | |
| Yearbook | 16 | 1st Period | 8:25 | To learn graphic design while making the yearbook | Ms. Jarrett |