A hand stencil on Muna Island
A hand stencil in Liang Metanduno cave on Muna Island, Indonesia, is reported to be at least 67,800 years old, the oldest known cave painting (Oktaviana et al., Nature, January 2026, as summarized by Wikipedia). Caves on nearby Sulawesi hold a pig-hunting scene dated to at least 51,200 years.
SourceWikipedia: Cave painting (citing Nature, 2026) (opens in a new tab)