Acetes japonicus is a shrimp species from the family Sergestidae. It occurs in the western Pacific Ocean and northern Indian Ocean, between Arabian Sea and the Yellow Sea. It is the species of wild shrimp or prawn with the highest reported annual catch, 402 thousand tonnes in 2019, fished by China and South Korea.

Aedes japonicus, commonly known as the Asian bush mosquito or the Asian rock pool mosquito, was first described by Theobald in 1901 from Tokyo, Japan. They are competent arbovirus vectors known to transmit the West Nile virus as well as Japanese and St. Louis encephalitis.