We are delighted to present the 2023 Frontiers in Cardiovascular Medicine “Rising Stars” article collection. This collection showcases the high-quality work of internationally recognized researchers in the early stages of their independent careers. All Rising Star researchers were individually nominated by the Chief Editors of the Journal in recognition of their potential to influence the future directions in their respective fields. The work presented here highlights the diversity of research performed across the entire breadth of cardiovascular medicine, including the elucidation of fundamental biology, the development of novel diagnostics or therapeutics, computational modelling approaches, and bioengineering strategies for regeneration.