Tegan Jovanka was a character in the British television series Doctor Who, played by actress Janet Fielding. She was a feisty Australian air hostess who appeared in the penultimate Tom Baker story Logopolis in 1981, and stayed with the Peter Davidson incarnation for a few seasons. Her nasally Australian dry wit and whinging added a human touch to the Tardis and the company of the Doctor's scientifically minded and insufferable companions Adric and Nyssa.

Using a database, a cursory check of Australian children born in the early 1980s shows that four times as many girls were named Tegan after her character appeared on Australian television than before.