SEK Views 8 meanings found SEK commonly identifies Sweden’s currency, the Swedish krona, but it also appears as a regional abbreviation for South East Kansas and as the name of various organizations and businesses. Governmental South East Kansas Spezialeinsatzkommandos International Süt Endüstrisi Kurumu Regional Swedish Krona Ksar Es Souk, Morocco Business Seek Ltd Seniseihin Eisei Kakogyokai Smith Elliott Kearns Company, LLC