Karo (tree), small tree or shrub native to New Zealand, aka Pittosporum crassifolium
United States v. Karo, 468 U.S. 705 (1984), a Supreme Court decision related to the Fourth Amendment's protections against unreasonable search and seizure
Karo (film), a 1937 Armenian-language Soviet adventure-war film
Protagonist of My Queen Karo, a 2009 Belgian film
Karo (cigarette), a German brand of filterless cigarettes
Eucalyptus brassiana, known as the Karo tree in Papua New Guinea