Jonathan James Vaughters (born June 10, 1973) is an American former professional racing cyclist and current manager of UCI WorldTeam EF Education–EasyPost.

In 1997 he moved to John Wordin's Comptel Data team, entering races he described as "A thousand times easier than being in Europe."

In 1999, he won the time trial of the Dauphiné Libéré and finished 2nd overall to Alexandre Vinokourov after losing the general classification leadership on the final stage.

In that Tour, he earned the nickname "El Gato" (The Cat in Spanish), having landed on his feet after being thrown headfirst over his handlebars in the first stage.

In June, he was fifth in the Critérium du Dauphiné Libéré, after placing fourth in the stage including Mont Ventoux.

In 2002, he participated in his fourth and final Tour de France as a rider but failed again to reach the end of the race.

He won the Mont Ventoux stage of the Critérium du Dauphiné Libéré in 1999 and 2001, and held the record for the fastest ascent until it was broken by Iban Mayo in 2004.

Vaughters also holds the Cycle To The Sun record time of 2:38 set in 1992 for climbing Haleakala volcano on Maui, Hawaii.

In February 2009, Jonathan Vaughters was elected president of the International Association of Professional Cycling Groups (AIGCP).