Ars nova is a late medieval musical stylistic period, centered in France.

Ars nova may also refer to:

• Project Ars Nova, a medieval ensemble featuring Crawford Young
• Ars Nova Copenhagen, a Danish choir conducted since 2002 by Paul Hillier
• Ensemble Ars Nova, a French classical instrumental ensemble led by Philippe Nahon
• Ars Nova Singers, Boulder, Colorado
• Ars Nova (Polish ensemble), instrumental ensemble of Jacek Urbaniak, collaborating with Collegium Vocale Bydgoszcz
• Ars Nova (American band), a classical-rock group, based in New York City, 1967–1969
• Ars Nova (Japanese band), a progressive rock band, based in Japan, 1983–present

• Ars nova (art), the period of painting also known as Early Netherlandish or the Flemish primitives
• Ars Nova (theater), an off-Broadway theater
• Ars Nova, an alternative name for the magical text Ars Notoria, the fifth book of the grimoire The Lesser Key of Solomon
• Arpeggio of Blue Steel -Ars Nova-, a Japanese anime television series based on the manga series Arpeggio of Blue Steel

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