Steynsburg is a small town situated at the intersection of the R56 and R390 in the Eastern Cape province of South Africa.
Steynsburg is part of the Walter Sisulu Local Municipality in the Joe Gqabi District Municipality.
The town lies 64 km south-west of Burgersdorp and 48 km north of Hofmeyr.
Steynsburg was developed around the Reformed Church established in 1872 and has been administered by a village management board since 1874. The town is named after Douwe Gerbrandt Steyn, grandfather of President Paul Kruger.
Steynsburg has a well-established Provincial hospital.
Steynsburg should not be confused with Steynsdorp (officially eMlondozi) in the Gert Sibande District Municipality of Mpumalanga province.