Notch may refer to: Notch (engineering), an indentation or slit in a material Nock (arrow), notch in the rearmost end of an arrow Markus Persson (born 1979), a Swedish game designer known by his online alias "Notch", best known for creating Minecraft Notch (musician) (born 1973), a hip hop, R&B, reggae, dancehall and reggaeton artist NOTCH (magazine), an Indian entertainment and lifestyle magazine Notch, Missouri, a community in the United States Notch signalling pathway, a cell signalling system present in most multicellular organisms Notch proteins, a family of transmembrane proteins Notch filter, a band-stop filter with a narrow stopband Notch test, also known as Charpy impact test Lion Notch, a male lion featured in the nature documentary series Big Cat Diary Notch display, an electronic screen with a cutout in it A type of col in geomorphology See also Top Notch (disambiguation) Niche (disambiguation) Nutch, an open-source search engine