World number 17 Madison Keys will defend the Aegon International title in Eastbourne next month.
The 20-year-old beat Angelique Kerber in three sets in the final last year to record her first tournament victory on the WTA Tour.
"Going back to the scene of my first WTA Tour title will be a special moment," Keys said.
"Eastbourne holds great memories and I am very excited to play there again. I feel comfortable on the courts."
Keys, who reached the semi-finals of the Australian Open in January, joins two-time Wimbledon winner Petra Kvitova in the field at Devonshire Park.
This year's Aegon International in Eastbourne takes place between 20 and 27 June.