John "Sixteen String Jack" Rann (1750 – 30 November 1774) was an English criminal and highwayman during the mid-18th century. He was a prominent and colorful local figure renowned for his wit and charm, he would later come to be known as "Sixteen String Jack" for the 16 various colored strings he wore on the knees of his silk breeches among other eccentric costumes. He was finally apprehended at the age of 24, after robbing the chaplain of Princess Amelia near Brentford, England in 1774 and, held in custody at Newgate Gaol in London where he supposedly entertained seven women at a farewell dinner, before his execution on 30 November. Shortly before being publicly executed at Tyburn, he appeared in a specially made pea-green suit and enjoyed cheerful banter with both the hangman and the crowd, whilst dancing a jig.