Erina Mano is a Japanese pop singer in Hello! Project. She joined Hello! Project in 2006 as a member Hello Pro Egg. In 2007, she became a member of the Hello! Project futsal team Gatas Brilhantes H.P. and its promotional J-pop group Ongaku Gatas. On March 29, 2007 she became a soloist after graduating from Ongaku Gatas, working under management and promotion of J.P Room.

Having received piano lessons since kindergarten, Mano's solo work within Hello! Project prominently features her the playing piano parts of her musical releases, providing the vocal and piano parts of her songs while performing in concerts and at live events. In 2008, Mano released three singles under an indies label. She has debuted under major label hachama with the single "Otome no Inori", released on March 18, 2009. It reached a #3 position on the Oricon charts the first day of release and reached #5 on the weekly chart. In 2009, Erina was announced as being one of the members of the new version of Pucchi Moni. Also known as Petit Moni or PucchiMoni V.