Daiken may refer to
People Leslie Daiken (1912–1964), Irish-Jewish advertising copywriter, poet, and editor, formerly Yodaiken Melanie Ruth Daiken (1945–2016), English composer and musician Daiken Okudaira (born 2003), Japanese actor
Other uses Daiken, the high school equivalency test in Japan Daiken Bio, a Taiwanese health supplement company Daiken Company Limited, a Japanese company of the Second World War, now Itochu