Sviatoslav Iaroslavich (1027 – December 27, 1076, Kiev) is the Prince (Kniaz) of Chernihiv from 1054 to 1073 and Grand Prince (Veliki Kniaz) of Kiev from 1073 until his death.

A son of Iaroslav I the Wise, heis a founder of the Chernihiv princely line and is sometimes referred to as Sviatoslav of Chernihiv.

His sons Oleg and Davyd will later rule the Chernihiv's lands, challenging the authority of Kiev.

Sviatoslav's son Gleb is instrumental in establishing his father's authority in Novgorod and Tmutarakan.