Sadika

{{Use dmy dates|date=November 2015}}

{{Infobox river

| name = Sadika

| image =

| image_size =

| image_caption =

| subdivision_type1 = Country

| subdivision_name1 = Bosnia and Herzegovina

| source1_location = NE slopes of Zastinje Mountain

| source1_elevation = {{Convert|1000|m|abbr=on}}

| mouth_location = Vrbanja

| mouth_coordinates = {{coord|44.4735|17.5466|display=it|region:BA_type:river}}

| mouth_elevation = {{Convert|496|m|abbr=on}}

| progression = {{RVrbanja}}

| length =

| discharge1_avg =

| basin_size =

}}

Sadika is a tributary of the river Vrbanja in Bosnia and Herzegovina. It rises on the northeastern slopes of Zastinje Mountain, at {{Convert|1000|m|ft}} above sea level. The Sadika's confluence with the Vrbanja–which is the largest right tributary of the Vrbas–is below Gigovići, a village close to the Kotor Varoš-Šiprage road, at {{Convert|496|m|ft}} above sea level.Vojnogeografski institut, Ed. (1955): Travnik (List karte 1:100.000, Izohipse na 20 m). Vojnogeografski institut, Beograd.Spahić M. et al. (2000): Bosna i Hercegovina (1:250.000). Izdavačko preduzeće "Sejtarija", Sarajevo.