SDK

SDK or sdk may refer to:

Samahang Demokratiko ng Kabataan, a Filipino mass youth organization
Sandakan Airport (IATA code SDK), Malaysia
Serbian Volunteer Corps (World War II), (Srpski Dobrovoljački Korpus), Axis group
Showa Denko (Shōwa Denkō Kabushiki-gaisha), a Japanese chemical company
Slovak Democratic Coalition (Slovenská demokratická koalícia), 1998–2002
Social Democrats (Kyrgyzstan), a political party
Software development kit
Sos Kundi language (ISO 639-3 code sdk), a language spoken in Papua New Guinea