Miriam Bianca Bulgaru (born 8 October 1998) is a Romanian tennis player. She achieved a career-high singles ranking of world No. 177.
Bulgaru made her WTA Tour debut at the 2018 Bucharest Open, after having received a wildcard into the singles draw. She lost her first-round match to Wang Yafan.
She had her first WTA Tour win as a wildcard at the 2023 Transylvania Open in Cluj Napoca, defeating Turkish lucky loser İpek Öz.
At the 2024 Iași Open, she recorded another WTA win in straight sets over second seed Tatjana Maria as a wildcard.
She won the 2024 Țiriac Foundation Trophy defeating Kathinka von Deichmann in the final. It was her first title at the WTA 125 level.