Lukas Neumayer (born 6 September 2002) is an Austrian tennis player.

Neumayer has a career high ATP singles ranking of world No.

[1] Neumayer made his ATP main draw debut at the 2021 Generali Open Kitzbühel after qualifying for the singles main draw.

On 13 February 2022 he won his first Futures Tournament (M15 Antalya) defeating Martín Cuevas from Uruguay in the final.

Current through the 2024 Davis Cup World Group I.