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Vascular remodelling is a vital process of a wide range of cardiovascular diseases and represents the altered structure and arrangement of blood vessels. The Hippo pathway controls organ size by regulating cell survival, proliferation and apoptosis. Yes-associated protein (YAP), a transcription coactivator, is a downstream effector of the Hippo pathway. There is growing evidence for the importance of the Hippo/YAP pathway in vascular-remodelling and related cardiovascular diseases. The Hippo/YAP pathway alters extracellular matrix production or degradation and the growth, death and migration of vascular smooth muscle cells and endothelial cells, which contributes to vascular remodelling in cardiovascular diseases such as pulmonary hypertension, atherosclerosis, restenosis, aortic aneurysms and angiogenesis. In this review, we summarize and discuss recent findings about the roles and mechanisms of Hippo/YAP signalling in vascular remodelling and related conditions.Linked Articles: This article is part of a themed section on Spotlight on Small Molecules in Cardiovascular Diseases. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.8/issuetoc. [ABSTRACT FROM AUTHOR]