Coordinates: 18°48′50″S 169°07′22″E / 18.81389°S 169.12278°E / -18.81389; 169.12278

Erromango is the largest island in Tafea Province, the southernmost province of Vanuatu. Its highest point is Mount Santop, at 886 m. Its largest villages are Port Narvin (Potnarvin) and Dillons Bay (Upongkor). The former main village was Ipota. The total area of Erromango is 888 km².

It was formerly known as Martyr's Island by the Presbyterian missionaries in the 19th century, because of the risk attached to missionary activity there.

John Williams of the London Missionary Society and a colleague was killed and eaten at Dillon Bay in 1839. In December 2009, after a lengthy collaboration between the Museum of Anthropology at the University of British Columbia and church and cultural leaders in Vanuatu, descendants of Williams travelled to Erromango to accept the apologies of descendants of those who killed their ancestor in a ceremony of reconciliation. To mark the occasion, Dillons Bay was renamed Williams Bay.

John Towner Williams (born February 8, 1932) is an American composer, conductor, and pianist. In a career spanning almost six decades, he has composed some of the most recognizable film scores in the history of motion pictures, including the Star Wars saga, Jaws, Superman, the Indiana Jones films, E.T. the Extra-Terrestrial, Hook, Jurassic Park, Schindler's List, War Horse, Home Alone and the first three Harry Potter films. He has had a long association with director Steven Spielberg, composing the music for all but two (Duel and The Color Purple) of Spielberg's major feature films.

Other notable works by Williams include theme music for four Olympic Games, NBC Sunday Night Football, the NBC Nightly News, the rededication of the Statue of Liberty, and the television series Lost in Space. Williams has also composed numerous classical concerti, and he served as the principal conductor of the Boston Pops Orchestra from 1980 to 1993; he is now the orchestra's conductor laureate.

Williams has won five Academy Awards, four Golden Globe Awards, seven BAFTA Awards, and 21 Grammy Awards. With 47 Academy Award nominations, Williams is the second most nominated person, after Walt Disney. John Williams was honored with the prestigious Richard Kirk award at the 1999 BMI Film and TV Awards. The award is given annually to a composer who has made significant contributions to film and television music. Williams was inducted into the Hollywood Bowl Hall of Fame in 2000, and was a recipient of the Kennedy Center Honors in 2004.