• Jaco (East Timor), island of East Timor
• Jacó, Costa Rica, a surfing town in Western Costa Rica

Jaco parrots:

• Jaco, local name for the Domincan endemic Red-necked Amazon parrot
• Usual name for African Grey Parrot in a number of languages

Jaco may also be:

• Japanese Animation Club of Orlando (JACO), which founded the JACON anime convention

Jaco is the name of:

• Jaco Pastorius (1951–1987), a notable jazz bassist
• Charles Jaco, a newscaster and radio personality
• William Jaco, mathematician
• Wasalu Muhammad Jaco, Chicago rapper known as Lupe Fiasco