Toyonoshima Daiki (born June 26, 1983 as Daiki Kajiwara) is a professional sumo wrestler from Sukumo, Kochi, Japan.
He made his professional debut in January 2002, reaching the top makuuchi division in September 2004.
He has been a runner-up in five tournaments, and has earned ten special prizes.
His highest rank has been sekiwake, which he first reached in September 2008 and has held for five tournaments to date.
Following a suspension in July 2010 he was demoted to the juryo division, but upon his return to makuuchi in November 2010 he took part in a playoff for the championship.
He has been runner-up in four other top division tournaments.
He has four kinboshi or gold stars awarded for yokozuna upsets, three of them earned by defeating Harumafuji from 2013 to 2015.