Alumni Weekend and Reunions

Save the Date

Alumni Weekend and Reunions

October 18-20, 2024

A weekend full of events, programs, and celebrations for alumni of all ages, plus Milestone Reunion Dinners for graduates in years ending in 'X4 and 'X9 from 1979 to 2019. Wonder what happens at Alumni Weekend? Read about 2023 Alumni Weekend and Reunions below.

Caltech Alumni Return to campus for 2023 Alumni Weekends and Reunions

More than 300 alumni from around the country and the globe, including participants from as far away as China, Germany, and Sweden, came together on campus October 19 to 22 to rekindle friendships, make new connections, and to learn about Caltech today during the 2023 Caltech Alumni Weekend and Reunions.

The annual event, which welcomed a record-breaking turnout, is produced by Caltech Alumni Relations with the purpose of encouraging members of the alumni community to connect with one another and with their alma mater.

Leading into the weekend, Jennifer Lee, PhD (PhD '10), chair of the Caltech Alumni Association Board of Directors, emphasized the value of the event, which combined cherished Caltech traditions with new and exciting experiences. “The CAA is committed to forging even stronger bonds between Caltech and the alumni community by creating new content programs while also honoring our past,” Lee said.

Highlights of the weekend included a tour of the JPL campus; a presentation by and discussion with faculty leads for Caltech’s Space Solar Power Project; SURF Seminar Day, which showcased recent student research; and a panel discussion with 2023 Distinguished Alumni Award (DAA) recipients moderated by 2001 DAA recipient Sandra Tsing Loh (BS '83). Provost David Tirrell also hosted a special conversation at the Alumni House on The Caltech Edge, and President Thomas F. Rosenbaum welcomed and celebrated the induction of graduates of the class of 1973, including the first class to include undergraduate women, into the Half Century Club.

“Caltech’s contributions to the world emanate in large part from the accomplishments of its graduates,” says Caltech President Thomas F. Rosenbaum, the Sonja and William Davidow Presidential Chair and professor of physics. “Alumni Weekend is the perfect opportunity to strengthen ties to the Institute, develop new friendships, and experience the intellectual excitement that is Caltech.”

During Saturday evening’s All Alumni Celebration on the Beckman Mall, Director of NASA JPL and Caltech Vice President Laurie Leshin, PhD (MS '89, PhD '95) presented models of the Psyche and Mars missions, enhanced by a HoloLens-assisted “Walk on Mars.”

“I've been to every milestone event for myself and my husband,” said Michelle Armond, JD (BS '00), who attended with her husband Alexander Ihler, PhD (BS '98), “and this was the best one yet. There were so many opportunities to see campus, reconnect with old friends, and make new ones. It’s been more than 25 years since I first stepped foot on campus. Although a lot has changed, Caltech’s essence is still the same; it feels like home.”

Alumni Weekend closed on Sunday with a panel discussion involving student leaders and House events organized for alumni by current students. During the panel, Andrew Pasco, currently a resident of Fleming House, discussed the value of the legacy that alumni have given to current students. 

“There are really tight connections between upperclassmen and lowerclassmen, and across Houses,” he said. “We can show why the Honor Code is so important, and why the community it creates is what makes Caltech special.”

The 2023 Alumni Weekend and Reunions served as a testament to the enduring spirit of the Techer community and their unwavering commitment to pushing the boundaries of scientific exploration.

To see photos from the event, visit the Alumni Weekend and Reunions gallery.

Alumni Weekend and Reunions

October 21-23, 2022

Registration is now closed!

Thank you to all alumni who registered. Please check your email for event details.

No late or on-site registrations are available for this event.

We can’t wait to welcome you back to the Caltech campus for a weekend of activities, including the Half Century Club Induction and Luncheon, the dedication of the Grant D. Venerable House, Torchbearer Legacy Society Social, the Athletics Hall of Honor Ceremony and Reception, milestone class gatherings for years ending in 2 and 7, athletics events, student and faculty programs, and the All-Alumni Reunion Celebration.

Reserve Your Hotel

Stay at the official Alumni Weekend hotel

Class Volunteers

Help us host an unforgettable weekend

Connect with Techers

Join the Caltech Alumni Portal

Your Digital Yearbook

Celebrate your decade milestone year

Proof of Vaccination

Caltech has lifted COVID-related restrictions for on-campus events, both indoor and outdoor.

By entering Caltech's facilities, visitors attest to being fully vaccinated or having a legal medical exemption. Masks are optional inside campus facilities, unless otherwise indicated. However, all members of the Caltech community who wish to continue to wear a mask are encouraged to do so.


If you have any questions, please contact

Thank you!

Register Today
Register Today



4:00 PM – 7:00 PM | Drop-In Welcome Coffee at the CAA Hospitality Suite

  • Grab a coffee and light bite on-the-go as you check in or stay awhile and rest up for the weekend! The Westin Pasadena

8:00 AM – 4:30 PM | CAA Hospitality Suite Open with Refreshments

  • The CAA Hospitality Suite will be open all day with complimentary beverages and snacks. Grab a coffee and pastry before Commencement, or a little pick me up in the afternoon. The Westin Pasadena

10:00 AM – 11:15 AM | Fall Commencement for the Classes of 2020 and 2021

  • Celebrate the Classes of 2020 and 2021 Caltech

11:00 AM – 1:30 PM | Lunch on Your Own

  • Enjoy special Caltech discounts at Granville and Float Pasadena. Pasadena

1:30 PM – 2:30 PM | Undergraduate Admissions Tour

  • Get an insider’s perspective on what makes Caltech unique as a current undergrad leads an informative tour around campus (limited space available, sign up now).
    OR opt for a self-guided tour by following Caltech’s comprehensive walking tour guide. Caltech
  • (Space is limited, registration available until tour is full. Self-guided tours will also be available.)

2:45 PM – 3:45 PM | Alumni Panel Discussion: The Third Option

  • How do we balance professional and personal lives in a world that’s not quite post-COVID? How do we bring the lessons learned in lockdown into our new world? Distinguished Alumni Award recipients Robert Behnken, PhD (MS '93, PhD '97), Barbara Burger, PhD (PhD '87), and Laurie Leshin, PhD (MS '89, PhD '95) will be in conversation with CAA President Satoshi Ohtake, PhD (BS ’00). Caltech

4:30 PM – 9:00 PM | Alumni Reunion Celebration

  • Let the official celebration begin! Enjoy an assortment of food, open bar, and great band – J.Dee Bolden! Celebrate with your fellow Techers under the evening air on the courtyard and patio. Congratulate Caltech’s newest alumni and honor those entering the Half-Century Club. The Westin Pasadena

8:00 AM – 11:00 AM | Farewell Continental Breakfast at the CAA Hospitality Suite

  • Cap off the weekend with an assortment of breakfast goodies as you pack up and say your goodbyes. The Westin Pasadena
Register Today

Thank you!

Thank you to all alumni who attended Caltech’s 2020 Reunion Weekend online!

Alumni from the undergraduate classes of 2020, 2015, 2010, 2005, 2000, 1995, 1990, 1985, 1980, 1975, 1970, 1965, 1960, 1955, and 1950 came together virtually and shared Caltech memories and personal updates from around the world.

Thank you for attending
Reunion Weekend 2018!

View photos of the weekend on Flickr.

Digital Class Memory Books

Reunion Weekend Online may be over, but you can still create a personal page within your Digital Class Memory Book to celebrate your reunion and your Caltech experience!

  • Share your favorite Caltech memories and photos.
  • Give an update about your life after Caltech.
  • Provide contact info to stay connected with your classmates.

Your Digital Class Memory Book, hosted on BrightCrowd, is a great way to catch up with classmates no matter where you are.

Digital Class Memory Books are available to alumni from the classes of 1970–2020 who are celebrating a Reunion in 2020.

To create your page and explore your Digital Class Memory Book,
click your class year below:

Class of 1970

Class of 1975

Class of 1980

Class of 1985

Class of 1990

Class of 1995

Class of 2000

Class of 2005

Class of 2010

Class of 2015

Class of 2020

f the email address you enter is not recognized, it means that we do not have that email address listed as your preferred contact email in our database. Contact us at and we will update our records and help you access your Digital Class Memory Book.

Helpful Tips

  • Adding a photo ensures you appear on your class landing page, which makes it easier for your classmates to find your page.
  • Add as much or as little information as you want. All questions are optional.
  • You can go back and add photos or edit your information until October 2021. After October, 2021, the book will still be available, but you will not be able to make changes to your page.
  • View everyone, including those without photos, by clicking "View Everyone" or "Directory."
  • Use the search tool on the top left to find classmates from your House(s) or division(s), who share similar hobbies, or who participated in similar activities, etc.
  • Make sure you include your city in the "Where are you living?" question to ensure that you show up on the interactive map.


How do I create my page?

Click here to learn how to create your page in your Digital Class Memory Book.

When can I create my page?
Alumni from class years that have Digital Class Memory Books were sent an email in October 2020 with a link to create a page. If your class has a Digital Class Memory Book (1970–2020) and you did not receive an email, please contact us at  

When is the deadline to create my page?
There is no official deadline. You will be able to edit your page for one year following the launch of your Digital Class Memory Book in October 2020. After October 2021, you will still have access to view your Digital Class Memory Book.

When can I view my classmates’ pages?
Alumni who create pages will immediately be able to view their page as well as other alumni pages.

Can I edit my page after I create it?
Yes. In your Digital Class Memory Book, click the 'My Page' link at the upper right to edit your page. You can edit your page until until October 2021. After October, 2021, the book will still be available, but you will not be able to make changes to your page.

Can I search for specific pages?
Yes. You can search by name, House or residence, hobbies and interests, or just a keyword in general.

Who do I contact if I have questions about or need help with my Digital Class Memory Book?
Email the CAA at for further support.


2020 Reunion Weekend Online

11:00 am
12:00 pm
10/23/20 11:00 am
10/24/20 12:00 pm

Thank you to all alumni who attended Caltech's 2020 Reunion Weekend online!


Alumni Weekend and Reunions

11:00 am
5:00 pm
Caltech Campus
10/19/23 11:00 am
10/22/23 5:00 pm
Caltech Campus

Alumni Weekend and Reunions celebrates all Caltech alumni. Plan now to return to campus for all-alumni festivities and featured traditions, including the Half Century Club Induction, special reunion class activities, and more.


Alumni Weekend and Reunions

8:00 am
5:00 pm
Caltech Campus
10/18/24 8:00 am
10/20/24 5:00 pm
Caltech Campus

Alumni Weekend and Reunions celebrates all Caltech alumni. Plan now to return to campus for all-alumni festivities and featured traditions.