Blake Bayldon (born 7 December 1998) is an Australian tennis player. He has a career high ATP doubles ranking of world No. 95 achieved on 25 August 2025.
He played college tennis at Barry before transferring to Boise State.
Bayldon made his ATP main draw debut at the 2024 Hangzhou Open in the doubles main draw with compatriot Thomas Fancutt.
He won his maiden ATP Challenger Tour doubles title at the 2025 Open Nouvelle-Calédonie with Colin Sinclair from the Mariana Islands.
Partnering Matthew Romios at the Challenger 125 2025 Bengaluru Open, he lost to Anirudh Chandrasekar and Ray Ho in the final.
Playing his second ATP tour main draw in doubles at the 2025 Los Cabos Open partnering compatriot Tristan Schoolkate, Bayldon recorded his first wins on this level and reached his first final.