Originally a pet form of Theodore, but now generally used for Edward, and also as an independent given name. Teddy bears were so named after the American president Theodore Roosevelt (1858–1919). Occasionally it is also used as a girl's name, in part as a pet form of Edwina.
English: habitational name from a place in South Yorkshire near Rotherham, named in Old English with the genitive case of an unattested personal name Tynni + hlāw ‘hill’, ‘mound’, ‘barrow’. This name is also established in Ulster.