Setoguchi

Setoguchi (瀬戸口) is a Japanese surname, meaning "mouth of the channel ". People with this surname include:
 * Tokichi Setoguchi (瀬戸口藤吉), Japanese composer and conductor
 * Devin Setoguchi (born 1987), Canadian ice hockey player

Fictional characters with this surname include:
 * Hina Setoguchi, a main character in 2016 Japanese animated film Suki ni Naru Sono Shunkan o