Elizabeth 'Ellie' Halbauer (born July 10, 1997) is an American tennis player.
Halbauer has a career-high WTA singles ranking of 260, achieved on January 30, 2017 and a career-high doubles ranking of 263, achieved on June 19, 2017.
She made her WTA Tour main-draw debut at the 2017 Volvo Car Open in the doubles draw, partnering Sofia Kenin.