Hydrogen produced from electrochemical water-splitting driven by renewable resource-derived electricity is considered a promising candidate for clean energy.However, sustainable hydrogen production from water splitting requires highly active catalysts to make the process efficient.Catalysts based on graphene-like two-dimensional (2D) materials present great potential in the hydrogen evolution reaction (HER) and thus gain attention.In this review, which is a combination of our recent works, we highlight research efforts towards electrocatalysts for the HER based on 2D materials including transition metal disulfides, MXenes, and boron monolayers.Finally, we summarize the challenges and prospects for future development of electrocatalysts for the hydrogen evolution reaction.