"While the others in the troop have very western names, where possible, we encourage names that are relevant to where animals come from," Mrs Nichols says.
"We're looking for names which relate to the chimpanzees' natural habitat in central and western Africa. We think their ancestral homeland should be an important part of how the public sees and appreciates them."
Entries received via hamiltonzoo.co.nz will be assessed by a team of zoo staff, who will then select a winner, to be announced on May 19.
The winner of the competition will receive an annual zoo pass.
Chimpanzees are on the International Union for the Conservation of Nature's list of endangered species. Identified as humans' closest living genetic relatives, chimpanzees once numbered millions across Africa, now it's estimated just 170,000 - 300,000 remain. The chimpanzees' main threats are habitat loss and the bush meat trade.