Antonia Lottner (German pronunciation: [anˈtoːni̯a ˈlɔtnɐ]; born 13 August 1996) is an inactive German tennis player.

Lottner has won seven singles titles and six doubles titles on the ITF Women's Circuit.

In June 2018, she reached her best singles ranking of world No.

In June 2017, Lottner won her first WTA Tour match in s-Hertogenbosch, Netherlands.

[1] Only results in WTA Tour and Grand Slam tournaments main-draw, Olympic Games and Fed Cup are included in win–loss records.