"John Brown" yawanci yana nufin wani ɗan tarihi mai suna John Brown wanda ɗan Amurka ne wanda ya kawar da kai wanda ya ba da shawarar yin amfani da tayar da kayar baya don hambarar da cibiyar bauta a Amurka. An fi saninsa da harin da ya kai kan ma’ajiyar makamai ta tarayya a Harpers Ferry, Virginia, a shekara ta 1859, inda shi da mabiyansa suka yi yunkurin fara tawayen bayi. An kama Brown, an gwada shi, kuma an kashe shi don cin amanar kasa, amma ayyukansa da ra'ayoyinsa sun taimaka wajen bunkasa motsi na abolitionist a cikin shekarun da suka kai ga yakin basasa. A cikin amfani na zamani, kalmar "John Brown" na iya yin nuni dalla-dalla ga wanda ya kasance mai himma kuma mai ba da shawara ga wani dalili, sau da yawa har zuwa tsattsauran ra'ayi.