Global fuel consumption and harmful gaseous emissions diverted energy sources to alternative means. Solar water splitting amidst other solar conversion methods is the most clean and efficient means of hydrogen production. 21st century technologies have delved into adopting nanomaterials of high efficiency to treat environmental pollution and produce hydrogen through electrochemical, photocatalytic, or electrophotocatalytic processes due to their outstanding properties. We reviewed diverse means of producing hydrogen through the use of advanced nanomaterials like carbon nanomaterials, solid inorganic-organic hybrids, metallic oxides/sulfides, quantum dots, composite heterostructures, microbial electrolysis cells etc. Overview on hydrogen production, ways of generating hydrogen, advanced nanomaterials for hydrogen production, and recent progress in hydrogen-producing nanomaterials have been discussed.