Siteki is a town located in eastern Eswatini, situated to the west of the Lebombo Mountains. It serves as a settled area within the country with an estimated population of 6,381 as of the 2013 census.
The name Siteki originates from a declaration by Mbandzeni that permitted his troops to marry. Historically, the town was recorded under the name Stegi in previous censuses; it had a population of 612 residents in 1956 and grew to 1,457 by 1966.