Name: Kumai Yurina

Also known as: Kuma-chan, Kumai-chan, Kumaichō, Yuri, Yurīne
| Born: August 3, 1993 (1993-08-03)
| Origin: Kanagawa, Japan
| Genre(s): Japanese pop
| Occupation(s): Singer
| Years active: 2002–present
| Label(s): Piccolo Town
| Associated: acts Berryz Kobo, H.P. All Stars, Hello! Project Kids
| Yurina Kumai (熊井 友理奈, Kumai Yurina, born on August 3, 1993 in Kanagawa, Japan) is a Japanese pop singer currently performing in the all-girl group Berryz Kobo, under Hello! Project. Kumai joined Hello! Project in 2002 after passing the Hello! Project Kids audition. She often is one of the lead singers in Berryz singles, and she is the tallest member of Hello! Project at 176.5 cm (5′9.5).