Alpha Rho Upsilon (ΑΡΥ in Greek, ARU in Latin/English; pronounced A-roo) was a fraternity at Bowdoin College in Brunswick, Maine, from 1946 until it was disbanded in 1990.

That the Thorndike Club and, hence, ARU came into existence is a testament to the sadness of the family of man divided on the basis of skin color, ethnicity or religious belief.

An architectural hybrid of Colonial Revival and the Shingle Style featuring Palladian windows, gambrels, peaked dormers and a balconied front porch with Ionic columns, the ARU house was built between 1894 and 1900 as the residence of George Taylor and Edith Davis Files.

An 1889 Bowdoin graduate, George Files was a German professor at the college until his death in 1919 upon returning from France, where he had helped the YMCA with the war effort.

In honor of the fraternity's World War II veteran origins, coinciding with the "Flyers" nickname (see below), the Executive Board was informally called the Strategic Air Command, and its first six positions were nicknamed Pilot, Co-pilot, Navigator, Tailgunner, Log Keeper and Radioman, respectively.

ARU also established a college-wide award, the James Bowdoin Cup, that was given annually to a distinguished scholar-athlete at the school.