An official flag was formally adopted by Rotary International at the 1929 RI Convention in Dallas, Texas. 

The Rotary flag consists of a white field with the official wheel emblem emblazoned in gold in the center of the field.  The four depressed spaces on the rim of the Rotary wheel are colored royal blue.  The name Rotary International printed at the top and bottom depressions on the wheel rim are also gold.  The shaft in the hub and the keyway of the wheel are white.  The first Rotary flag reportedly was flown in Kansas City, Missouri in January 1915.  In 1926, a small Rotary flag was carried over the North Pole by Admiral Richard Byrd, a member of the Rotary Club of Whichester, Virginia.  In 1920, the admiral carried a Rotary flag in his expedition to the South Pole.  During Rotary's centennial year, 2004-05, Rotarian and Rotaract climbers carried flags to the of Mount McKinley and Mount Everest.

Some Rotary clubs use the official Rotary fag as a banner at club meetings.  In these instances, it is appropriate to print the works Rotary Club above the wheel symbol and the club's name below the emblem.

The Rotary flag is always prominently displayed at RI World Headquarters and at all RI conventions and official events.