SBS 4

{{Infobox spaceflight

| name = SBS 4

| image = STS41D-36-034.jpg

| image_size = 200px

| image_caption = SBS 4 in the space

| mission_type = Communications

| operator = SBS

| website =

| COSPAR_ID = 1984-093B

| SATCAT = 15235

| mission_duration = 7 years design life

| spacecraft_bus = HS-376

| manufacturer = Hughes Space and Communications

| dry_mass =

| launch_mass = {{convert|1,117|kg}}

| power =

| launch_date = {{start-date|30 August 1984, 12:41:50|timezone=yes}} UTC

| launch_rocket = Space Shuttle Discovery STS-41D

| launch_site = Kennedy LC-39A

| launch_contractor = NASA

| entered_service =

| disposal_type = Decommissioned

| deactivated = {{end-date|September 29, 2005}}

| orbit_epoch = August 30, 1984

| orbit_reference = Geocentric

| orbit_regime = Geostationary

| orbit_periapsis = {{convert|317|km}}

| orbit_apoapsis = {{convert|36,137|km}}

| orbit_inclination = 23°

| orbit_period = 640.2 minutes

| orbit_eccentricity = 0.72775

| orbit_longitude = 94° W

| apsis = gee

| trans_band = 14 Ku band

| trans_frequency =

| trans_bandwidth =

| trans_capacity =

| trans_coverage =

| trans_TWTA =

| trans_EIRP =

| trans_HPBW =

}}

SBS 4 was a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-376 platform. It was ordered by Satellite Business Systems, which later sold it to Hughes Communications. It had a K_u band payload and operated at 94°W longitude.