Seppo

Seppo is a masculine given name of Finnish origin. It has two distinct origins; Seppo is a character in the Kalevala, whose name is derived from the Finnish word seppä, meaning smith, and the name is also a diminutive for Sebastian in Finland.

It may refer to:

People

 * Seppo Evwaraye (born 1982), Finnish National Football League offensive guard
 * Seppo Kääriäinen (born 1948), Finnish politician
 * Seppo Kolehmainen (1933–2009), Finnish film actor
 * Seppo Lehto (born 1962), Finnish political activist
 * Seppo Pääkkönen (born 1957), Finnish actor
 * Seppo Ruohonen (1946-2020), Finnish opera singer
 * Seppo Räty (born 1962), Finnish javelin thrower
 * Seppo Sairanen (born 1952), Finnish football manager and former goalkeeper
 * Seppo Seluska, Swedish neo-Nazi and subject of the historical photo A Woman Hitting a Neo-Nazi With Her Handbag
 * Seppo Simola (1936–2003), Finnish shotputter
 * Seppo Telenius (born 1954), Finnish writer
 * Seppo Harjanne (born 1948), Finnish WRC co-driver
 * Seppō Gison, the Japanese surname of Chinese Zen Master Xuefeng Yicun (822-908)

Fictional or mythological characters

 * Seppo Ilmarinen, the smith in the Kalevala of Finnish mythology
 * Seppo Taalasmaa, in the Finnish soap opera Salatut elämät

Other

 * An Australian English variation on "septic" (from "septic tank", rhyming with "yank"), a slang term for "American" in rhyming slang