Hârtibaciu

{{Infobox river

| name = Hârtibaciu

| native_name =

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| pushpin_map = Romania

| subdivision_type1 = Country

| subdivision_name1 = Romania

| subdivision_type2 = Counties

| subdivision_name2 = Brașov, Sibiu

| subdivision_type3 = Towns

| subdivision_name3 = Agnita

| length = {{convert|110|km|abbr=on}}

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| mouth = Cibin

| mouth_location = Mohu

| mouth_coordinates = {{coord|45.7338|24.2379|display=inline,title}}

| mouth_elevation =

| progression = {{RCibin}}

| river_system =

| basin_size = {{convert|1025|km2|abbr=on}}

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The Hârtibaciu (German: Harbach; Hungarian: Hortobágy) is a river in the Transylvania historical region of Romania. It develops in the South Carpathians and flows into the Cibin, a tributary of the Olt,{{GeoSource|RO|Annex7|690}}{{GeoSource|RO|Atlas|289-291|VIII.1.120.11}} in Mohu, southeast of Sibiu.[http://www.e-calauza.ro/index.php?afiseaza=pluta_noua&rau=1930 Hartibaciu (jud. Sibiu)], e-calauza.ro It flows through the towns and villages Bărcuț, Retiș, Brădeni, Netuș, Agnita, Benești, Alțâna, Nocrich, Hosman, Cornățel and Cașolț. Its length is {{convert|110|km|abbr=on}} and its basin size is {{convert|1025|km2|abbr=on}}.{{GeoSource|RO|Atlas|289-291|VIII.1.120.11}}

King Géza II of Hungary settled the initial Transylvanian Saxon colonists along the Hârtibaciu, referred to by them as the Harbach. The Saxons established many towns along the river such as Agnita with Kirchenburgen, or fortified churches.