Cathedral School for Boys

Cathedral School for Boys Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Cathedral School for Boys, Elementary School, 1275 Sacramento Street, San Francisco, CA.

Cathedral School for Boys is committed to providing an exceptional educational experience for its students by developing scholars, leaders, and young men of character, who are self-aware, confident, and eager to make a difference in the world.

09/01/2026

A special day in Kinder Camp!

Our newest students got their first glimpse into some school traditions and the beauty of Grace Cathedral. Guided by Father Timothy, they explored the chapel, admired the paintings, learned about its history, and listened to the sounds of the organ.

And then, the class of ‘35 made a little history of their own. They were the very first students to eat in our newly renovated cafeteria! What a special way to mark their first field trip—and the beginning of their first chapter as members of our school community.

08/20/2026

Campus may be quiet right now, but we know it won’t be for long.

Behind the scenes, there’s so much happening as we prepare for a new year. Classrooms are being readied, plans are taking shape, and soon these quiet halls will once again be filled with the energy, laughter, and excitement of our students.

Just a couple more weeks… and we’ll be ready to welcome you home.

07/02/2026

What is Forbes up to this summer?

Keeping busy, of course:
🧹 Cleaning
💼 Meeting
📚 Reading
🎉 Playing

But wait... who’s that under the feathers? 👀

Please join us in celebrating our Interim Head of School, Kate Juergens! Here’s to an exciting school year ahead! 💙🦅

They made it off the river!Since departing nine days ago, a group of our rising Grade 8 students has been on the Green R...
06/23/2026

They made it off the river!

Since departing nine days ago, a group of our rising Grade 8 students has been on the Green River for this year’s NOLS x CSB whitewater rafting expedition — paddling, camping, working as a team, practicing leadership, and learning far beyond the classroom.

We can’t wait to welcome them back to San Francisco and hear the stories they’ll carry with them into their final year at Cathedral.

The journey begins.Yesterday, a group of rising eighth graders set off for this year’s NOLS x CSB summer expedition: a w...
06/15/2026

The journey begins.

Yesterday, a group of rising eighth graders set off for this year’s NOLS x CSB summer expedition: a whitewater rafting adventure on the Green River.

Building on their Grade 4–7 Outdoor Education experiences, and especially this spring’s Grade 7 rafting trip, the expedition gives students the chance to practice leadership, teamwork, resilience, and responsibility in a setting far beyond the classroom.

Thank you to Mr. Rahlson and our partners at NOLS for creating this incredible opportunity for our boys.

Here’s to strong paddling, good teamwork, and stories they’ll remember for a lifetime.

From Merced to Mariposa to Yosemite, one mile at a time. 🚲This week, Mr. Mundy continued a beloved summer tradition, lea...
06/11/2026

From Merced to Mariposa to Yosemite, one mile at a time. 🚲

This week, Mr. Mundy continued a beloved summer tradition, leading a small group of just-graduated eighth graders on a three-day bike trip to Yosemite. Joined this year by Father Timothy and a CSB alum from the Class of 2018, the group rode 50 miles through the Central Valley on day one, another 50 miles toward Yosemite on day two, and a final 20 miles into the park on Tuesday, where they met families at Cathedral Beach.

A few flat tires? Naturally. Great weather, determined boys, beautiful scenery, and a whole lot of Cathedral spirit? Absolutely.

Well done, gentlemen. ❤️💛

06/04/2026

Congratulations to the Cathedral School for Boys Class of 2026!

This morning, our eighth graders gathered with family, friends, faculty, and staff for Graduation, marking the close of one chapter and the beginning of the next.

In a farewell reflection delivered by a graduate chosen by his classmates, one of our boys spoke about the classmates, teachers, parents, friendships, laughter, challenges, mistakes, and memories that have shaped this remarkable group. His words captured what has made the Class of 2026 so special: the way these boys have supported one another, celebrated one another, learned from one another, and grown together.

To the Class of 2026: We are proud of the young men you have become. Thank you for the joy, energy, leadership, humor, and heart you have brought to Cathedral. May you carry the lessons, friendships, and spirit of this place with you into all that comes next.

Congratulations, Class of 2026!

Huge congratulations to Darnell Adler ’18, who has been named the global winner of the 2026 Red Bull Basement World Fina...
06/04/2026

Huge congratulations to Darnell Adler ’18, who has been named the global winner of the 2026 Red Bull Basement World Final!

Darnell’s winning idea, Lifeline AI, is a personal safety platform designed to help people reach emergency responders and trusted contacts in moments when using a phone may not be possible. His idea rose to the top of a global innovation competition that drew more than 135,000 submissions.

We are incredibly proud to celebrate Darnell’s creativity, purpose, entrepreneurial spirit, and commitment to building something that can help others.

Well done, Darnell. Your Cathedral School community is proud to celebrate this extraordinary achievement!

Move-Up Day has a little bit of everything: one eye on the year behind us, one eye on the year ahead, and both feet firm...
06/03/2026

Move-Up Day has a little bit of everything: one eye on the year behind us, one eye on the year ahead, and both feet firmly in the joyful chaos of right now.

Students got a glimpse of the year ahead by visiting their future classrooms and teachers, fourth graders got a first taste of life in the Upper School, lockers and classrooms were cleaned out, yearbooks were signed, and the Class of 2026 soaked up one of its final days on campus.

And on an absolutely beautiful, sunny San Francisco day, the roof was the place to be: the Grade 8 Slam Dunk Contest, the annual Grade 8 vs. Faculty Basketball Game, and exactly the right amount of friendly competition, big cheers, shared laughter, and end-of-year magic.

A day for looking back.
A day for looking ahead.
A day for celebrating the boys right where they are.

A Cathedral School full-circle moment.Today, our Grade 8 students traveled to the Oakland Zoo with their Kindergarten Li...
06/01/2026

A Cathedral School full-circle moment.

Today, our Grade 8 students traveled to the Oakland Zoo with their Kindergarten Little Brothers, continuing one of CSB’s most joyful year-end traditions.

Eight years ago, these same Grade 8 students were Kindergarten boys on this very trip, standing alongside their own Grade 8 Big Brothers. Now, as they prepare to graduate, they are the ones leading, caring for, and making memories with the youngest boys at Cathedral School.

Then and now, this tradition reminds us that leadership begins in relationship, grows through responsibility, and continues from one generation of Cathedral boys to the next.

Address

1275 Sacramento Street
San Francisco, CA
94108

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+14157716600

Website

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