Amnesty International (AI) promotes awareness about issues of freedom, and AI's Student Network connects students to the worldwide movement of human-rights activism. Club activities include meeting with groups from other schools and initiating postcard campaigns and programs to promote awareness on campus.

Open to all interested students, this club works to promote understanding of Asian cultures and enhance communications between domestic Peddie students and those from Asia, China, Hong Kong, Taiwan, Korea, India, Japan, and Thailand. Activities include museum trips, learning Chinese calligraphy and cuisine, and watching films on Asian history and cultures. Chinese New Year is celebrated in January/February.

Atheneum is a literary, cultural and tea society at Peddie. Meetings are held periodically throughout the school year. Students are invited to bring a favorite book, play, comic or slice of literature and share tea, snacks and bookish conviviality.

The Peddie chapter of the national Beta Club promotes leadership, service, and character. By serving others, it builds community spirit and strives to help others and improve the community as a whole. Some of our many activities include peer tutoring during exams and community service related to an “adopted” school with less fortunate children.

The secondary school equivalent to Phi Beta Kappa (the college-level honor society), the Cum Laude Society seeks to promote learning and sound scholarship in secondary schools. Peddie's chapter elects up to one-fifth of each senior class and installs new members at the opening of school, Founders Day, and Baccalaureate. Inductees receive an honorary pin and certificate, attend the annual banquet in May, and have their names inscribed on plaques in Annenberg Hall.

Dynasty is a dance club that performs at the Blair Week Pep Rally and other school sponsored events.

The Environmental Club serves to educate the Peddie community on a variety of environmental issues. Our present efforts have focused on recycling, improvements to the Peddie Nature Trail, composting, water conservation in the dormitories, and campaigns to inform the community about local and international environmental concerns. Everyone is encouraged to join and participate in these activities with the club.

This club is for students, faculty, and others in the Peddie community who enjoy the French culture, wish to practice the French language, or both. The club has a French-speaking table at lunch once or twice a week, celebrates major fetes (ie, Mardi Gras), and organizes trips to French restaurants, museums, shows. Members also watch French movies and learn about French cuisine.

The Peddie Gay-Straight Alliance is an open forum and service group designed to provide education and support concerning issues of homosexuality, bisexuality, heterosexuality, and homophobia. The group meets twice a month and is open to all students and faculty, regardless of sexual orientation. A major activity is the Day of Silence when students may volunteer to not speak for an entire morning to honor gays and lesbians who feel trapped in silence about their sexuality to avoid physical or verbal abuse or more subtle forms of social discrimination.

Gold Key is a group of students nominated by the faculty and elected by the student body to act as a service organization for the Peddie community. Members of the society serve refreshments after convocation and act as ushers at plays and other functions where assistance is needed.

Members of the hockey club share their passion for the game by gathering to watch games throughout the season and attending local area hockey games.

The Vegetarian Club provides guidance, support and companionship for those students choosing to live "la via veggie."

The Latin Club is open to any student who is currently taking or has previously studied Latin. The goal of the club is to offer wider contact with the world of the Greeks and Romans through such activities as trips to museums in Philadelphia and New York and parties in the Roman style. Events celebrated each year include Augustus’ birthday (September),Virgil’s birthday and annual Virgil look-alike contest (October), a Toga Party (Halloween), Saturnalia (December),The Opening of War Season (March), and the spring orgy (May).

Full membership in Mu Alpha Theta, National Mathematics Honor Society for High School and Two-Year College Students is offered to juniors and seniors who have completed the equivalent of four semesters of college-preparatory math with distinction. To be eligible for associate membership, you must be a freshman or sophomore who has completed two semesters of algebra (or their equivalent) with distinction. Nominations and applications are accepted throughout the year. New students may apply during winter and spring terms only.

The Multicultural Alliance is open to all students and faculty no matter what their cultural background. The purpose of this organization is to make the entire Peddie community aware of the many different cultures present, as well as to educate and enlighten the community about the particular benefits and challenges of living in such a diverse community.

The Old Gold and Blue is the title of the Peddie School yearbook. In addition to being a cherished keepsake, this book serves as a permanent record of your years at Peddie. If you are interested in writing, photography, journalism, or sales, there's a place for you here. No experience necessary.

Operation Smile is a non-profit medical service organization that provides free surgery to indigent children here and abroad who suffer from facial deformities. The club raises funds and awareness for this humanitarian group. Students have opportunities to serve on overseas medical missions and to attend the annual Youth Leadership Conference.

The Outing Club is one of the largest groups on campus. Activities are held over fall, winter and spring long weekends and on Sunday afternoons and vary depending on the interest of the faculty and students involved. Recent trips have included backpacking on the Appalachian trail, skiing at Killington, indoor and outdoor rock climbing, canoeing and kayaking (white water and flat water) and mountain biking.The Outing Club owns a large amount of equipment that students may borrow, thus keeping the cost of trips to a minimum.

A community service improvisation troupe that encourages all of the “what ifs” a creative mind can imagine. Made up of 16 students, the group works to expose young minds to the performing arts while weaving in its message of service to others.The goal is to use the arts as a means to excite young children about the role they can play in community service.

The Spanish Club is a group of students and faculty who actively promote knowledge and enjoyment of the Spanish language and the various Spanish cultures around the world. Activities include a theme dance, movies, concerts, museum trips, and meals at local restaurants.

The Peddie News is the student newspaper. It attempts to provide a comprehensive and balanced view of school events, stressing those of primary interest to students. Reporters and editorial writers cover events and issues involving coursework, athletics, and other aspects of day- and boarding-student life, as well as issues confronting the entire Peddie community. Writers, photographers, graphic designers, and business-minded students all are essential to its operation. Students of all ages are invited to help produce the paper, and all members of the school community are encouraged to submit material for publication.

The Young Entrepreneurs Club is open to all students and offers an opportunity to learn about the free-enterprise system and the business world. The club's main focus is an annual online Stock Market Competition. Additionally, the club invites business leaders from various sectors of the economy to speak to the group monthly. Other activities include a trip to the New York Stock Exchange and Manhattan's financial district, as well as regular club discussion sessions.

The Yummy Club’s purpose is to encourage the Peddie community to taste gourmet food at a reasonable price. Applicants do not need to be chefs or experts in cooking to become members. Menus range from hors d’oeuvres to desserts and sampling of main courses. All profits go to a soup kitchen in Trenton.