Notch

Notch may refer to:


 * The nock of an arrow
 * Notch (artist), a Hip hop, R&B, reggae, dancehall and reggaeton artist
 * Notch signaling pathway, a cell signaling system present in most multicellular organisms
 * Notch filter, a band-stop filter with a narrow stopband
 * Notch test, also known as Charpy impact test
 * Notch, a male lion featured in the BBC series Big Cat Diary
 * A mountain pass
 * The online alias of Markus Persson, the creator of Minecraft and founder of Mojang AB, who also worked as a developer on the MMORPG Wurm Online.