The following is a list of Australian radio station callsigns beginning with the number 3, indicating radio stations in the state of Victoria.
| Callsign | Area served | Freq. | Band | On-air ID | Purpose | Cite |
|---|---|---|---|---|---|---|
| 3ABCFM | Victoria | various | FM | ABC Classic FM | National | |
| 3ABCRN | Victoria | various | FM | ABC Radio National | National | |
| 3ABCRR | Bendigo | 91.1 | FM | ABC Central Victoria | National | |
| 3AK | Melbourne | 1116 | AM | SEN | Commercial | |
| 3APL | Bacchus Marsh | 098.5 | FM | Apple 98.5FM | Community | |
| 3AW | Melbourne | 0693 | AM | 3AW | Commercial | |
| 3BAY | Geelong | 093.9 | FM | Bay FM | Commercial | |
| 3BBA | Ballarat | 103.1 | FM | Power FM | Commercial | |
| 3BBB | Ballarat | 099.9 | FM | Voice FM | Community | |
| 3BBO | Bendigo | 093.5 | FM | Triple M Bendigo | Commercial | |
| 3BBR | Warragul | 103.1 | FM | 3BBR | Community | |
| 3BBS | Bendigo | 101.5 | FM | Bendigo's Fresh FM | Community | |
| 3BDG | Bendigo | 091.9 | FM | hit91.9 Bendigo | Commercial | |
| 3BGR | Ballarat | 103.9 | FM | Good News Radio | Community | |
| 3BPH | Bendigo | 088.7 | FM | Vision Australia Radio | Community | |
| 3BT | Ballarat | 1314 | AM | RSN Racing & Sport | Commercial | |
| 3CAT | Geelong | 095.5 | FM | K-Rock | Commercial | |
| 3CCS | Colac | 106.3 | FM | Mixx FM | Commercial | |
| 3CH | Kyneton | 100.7 | FM | Highlands FM | Community | |
| 3CR | Melbourne | 0855 | AM | 3CR | Community | |
| 3CRR | Ballarat | 107.9 | FM | ABC Ballarat | National | |
| 3CS | Colac | 1134 | AM | 3CS | Commercial | |
| 3EA | Melbourne | 1224 | AM | SBS Radio | National | |
| 3ECB | Melbourne Eastern Suburbs | 098.1 | FM | Eastern FM | Community | |
| 3EE | Melbourne | 1278 | AM | Magic 1278 | Commercial | |
| 3EL | Maryborough/Bendigo | 1071 | AM | Gold Central Victoria | Commercial | |
| 3EON | Bendigo | 096.5 | FM | KLFM | Community | |
| 3FOX | Melbourne | 101.9 | FM | Fox FM | Commercial | |
| 3GCB | Latrobe Valley | 103.9 | FM | Life FM | Community | |
| 3GCR | Latrobe Valley | 104.7 | FM | Gippsland FM | Community | |
| 3GDR | Waverley | 095.7 | FM | Golden Days Radio | Community | |
| 3GFM | Maryborough | 099.1 | FM | Goldfields FM | Community | |
| 3GG | Warragul | 0531 | AM | 3GG | Commercial | |
| 3GGR | Geelong | 096.3 | FM | 96three | Community | |
| 3GI | Sale | 0828 | AM | ABC Gippsland | National | |
| 3GLR | Latrobe Valley | 100.7 | FM | ABC Gippsland | National | |
| 3GPH | Geelong | 099.5 | FM | Vision Australia Radio | Community | |
| 3GRR | Echuca | 104.7 | FM | EMFM | Community | |
| 3GV | Sale | 1242 | AM | Gold 1242 | Commercial | |
| 3GVR | Goulburn Valley | 097.7 | FM | ABC Shepparton | National | |
| 3HA | Hamilton | 0981 | AM | 3HA | Commercial | |
| 3HCR | Omeo | 097.3 | FM | High Country Radio | Community | |
| 3HFM | Hamilton | 088.9 | FM | Mixx FM | Commercial | |
| 3HHH | Horsham | 096.5 | FM | Triple H | Community | |
| 3HOT | Mildura | 106.7 | FM | Hot FM | Community | |
| 3INR | Melbourne North East Suburbs | 096.5 | FM | Inner FM | Community | |
| 3JJJ | Victoria | various | FM | triple j | National | |
| 3JOY | Melbourne City | 094.9 | FM | Joy 94.9 | Community | |
| 3KKZ | Melbourne | 104.3 | FM | Gold 104.3 | Commercial | |
| 3KND | Melbourne | 1503 | AM | 3KND | Community | |
| 3LO | Melbourne | 0774 | AM | ABC Melbourne | National | |
| 3MBR | Murrayville | 103.5 | FM | 3MBR | Community | |
| 3MBS | Melbourne | 103.5 | FM | 3MBS | Community | |
| 3MCR | Mansfield | 099.7 | FM | Radio Mansfield | Community | |
| 3MDA | Mildura | 099.5 | FM | hit99.5 Sunraysia | Commercial | |
| 3MDR | Mountain Districts | 097.1 | FM | 3MDR | Community | |
| 3MEL | Melbourne | 100.3 | FM | Nova | Commercial | |
| 3MFM | Leongatha | 088.1 | FM | South Coast FM | Community | |
| 3MGB | Mallacoota | 101.7 | FM | 3MGB | Community | |
| 3MIL | Sunraysia and the Murray Valley | 104.3 & 102.1 | FM | ABC Mildura Swan Hill | National | |
| 3ML | Mildura | 1467 | AM | River 1467 | Commercial | |
| 3MMM | Melbourne | 105.1 | FM | Triple M Melbourne | Commercial | |
| 3MP | Melbourne | 1377 | AM | 3MP | Commercial | |
| 3MPH | Mildura | 107.5 | FM | Vision Australia Radio | Community | |
| 3MRR | Victorian Upper Murray (Upper Hume region) | 106.5 | FM | ABC Goulburn Murray | National | |
| 3MT | Omeo | 0720 | AM | ABC Gippsland | National | |
| 3NE | Wangaratta | 1566 | AM | 3NE | Commercial | |
| 3NNN | Wangaratta | 102.1 | FM | Edge FM | Commercial | |
| 3NOW | Melbourne North West Suburbs | 098.9 | FM | North West FM | Community | |
| 3NRG | Sunbury | 099.3 | FM | 3NRG | Community | |
| 3OCR | Colac | 098.3 | FM | OCR FM | Community | |
| 3ONE | Shepparton | 098.5 | FM | ONE FM | Community | |
| 3PB | Victoria | various | AM | ABC NewsRadio | National | |
| 3PBS | Melbourne | 106.7 | FM | PBS | Community | |
| 3PFM | Bendigo City | 106.7 | FM | Phoenix FM | Community | |
| 3PLS | Geelong | 094.7 | FM | The Pulse | Community | |
| 3PNN | Victoria | various | FM | ABC NewsRadio | National | |
| 3PTV | Melbourne | 091.5 | FM | Smooth FM | Commercial | |
| 3PVR | Plenty Valley | 088.6 | FM | Plenty Valley FM | Community | |
| 3RBA | Ballarat | 102.3 | FM | 3BA | Commercial | |
| 3REG | East Gippsland | 090.7 | FM | REG FM | Community | |
| 3RIM | Melton | 097.9 | FM | 979fm | Community | |
| 3RMR | Mildura | 097.9 | FM | Triple M Sunraysia | Commercial | |
| 3RN | Victoria | various | AM | ABC Radio National | National | |
| 3RPC | Portland | 099.3 | FM | 3RPC | Community | |
| 3RPH | Melbourne | 1179 | AM | Vision Australia Radio | Community | |
| 3RPP | Mornington | 098.7 | FM | RPP | Community | |
| 3RRR | Melbourne | 102.7 | FM | Triple R | Community | |
| 3RUM | Victorian Upper Murray (Upper Hume region) | 088.7 & 107.7 | FM | Radio Upper Murray | Community | |
| 3SBSFM | Victoria | various | FM | SBS Radio | National | |
| 3SCB | Melbourne Southern Suburbs | 088.3 | FM | Southern FM | Community | |
| 3SEA | Warragul | 094.3 | FM | hit94.3/97.9 Gippsland | Commercial | |
| 3SER | Melbourne South East Suburbs | 097.7 | FM | Casey Radio | Community | |
| 3SEY | Seymour | 103.9 | FM | Seymour FM | Community | |
| 3SFM | Swan Hill | 099.1 | FM | Smart FM | Community | |
| 3SH | Swan Hill | 1332 | AM | 3SH | Commercial | |
| 3SHI | Swan Hill | 107.7 | FM | Mixx FM | Commercial | |
| 3SPH | Shepparton | 100.1 | FM | Vision Australia Radio | Community | |
| 3SR | Shepparton | 1260 | AM | RSN Racing & Sport | Commercial | |
| 3SRR | Shepparton | 095.3 | FM | Triple M Goulburn Valley | Commercial | |
| 3SUN | Shepparton | 096.9 | FM | hit96.9 Goulburn Valley | Commercial | |
| 3SWR | Portland | 096.9 | FM | ABC South West Victoria | National | |
| 3SYN | Melbourne | 090.7 | FM | SYN | Community | |
| 3TFM | Sale | 099.5 | FM | TRFM | Commercial | |
| 3TLR | Wodonga | 098.5 | FM | The Light | Community | |
| 3TSC | Melbourne | 089.9 | FM | Light FM | Community | |
| 3TTT | Melbourne | 101.1 | FM | KIIS 101.1 | Commercial | |
| 3UGE | Alexandra/Eildon | 106.9 | FM | UGFM | Community | |
| 3UZ | Melbourne | 0927 | AM | RSN Racing & Sport | Commercial | |
| 3VKV | Mount Beauty | 096.5 | FM | Alpine Radio | Community | |
| 3VYV | Yarra Valley | 099.1 | FM | Yarra Valley FM | Community | |
| 3WAY | Warrnambool | 103.7 | FM | 3WAY FM | Community | |
| 3WBC | Camberwell | 094.1 | FM | 3WBC | Community | |
| 3WL | Warrnambool | 1602 | AM | ABC South West Victoria | National | |
| 3WM | Horsham | 1089 | AM | 3WM | Commercial | |
| 3WMA | Castlemaine | 094.9 | FM | Main FM | Community | |
| 3WPR | Wangaratta | 101.3 | FM | OAK FM | Community | |
| 3WTL | Bendigo City | 105.1 | FM | Life FM | Community | |
| 3WV | Western Victoria | 0594 | AM | ABC Wimmera | National | |
| 3WWM | Horsham | 101.3 | FM | Mixx FM | Commercial | |
| 3WYN | Werribee | 088.9 | FM | WYN FM | Community | |
| 3YB | Warrnambool | 094.5 | FM | 3YB | Commercial | |
| 3YFM | Warrnambool | 095.3 | FM | Coast FM | Commercial | |
| 3ZZZ | Melbourne | 092.3 | FM | 3ZZZ | Community | |
| Callsign | Area served | Freq. | Band | Fate | Freq currently | Purpose |
|---|---|---|---|---|---|---|
| 3AB | Wodonga | 0990 | AM | Changed call to 3RN in 1991 | 3RN | National |
| 3AR | Melbourne | 0621 | AM | Changed call to 3RN in 1991 | 3RN | National |
| 3BA | Ballarat | 1314 | AM | Moved to FM in 1998 as 3RBA | 3BT | Commercial |
| 3BO | Bendigo | 0945 | AM | Moved to FM in 1993 as 3BBO | 3UZ (HPON) | Commercial |
| 3CCC | Bendigo | 089.5 | FM | Moved to 101.5 MHz and changed call to 3BBS in 2010 | 3PNN | Community |
| 3CV | Charlton | 1071 | AM | Moved to Maryborough in the 1940s | Commercial | |
| 3CV | Maryborough/Bendigo | 1071 | AM | Remains on 1071 AM as Gold Central Victoria (3EL) and simulcast on FM from 1999 as 3BDG on 98.3 FM in Bendigo only. | 3EL | Commercial |
| 3DB | Melbourne | 1026 | AM | Changed call to 3TT in 1988 | see 3TT | Commercial |
| 3EON | Melbourne | 092.3 | FM | Moved to 105.1 MHz and changed call to 3MMM in 1988 | 3ZZZ | Commercial |
| 3FUN | Sunbury | 099.3 | FM | Changed call to 3NRG in 2009 | 3NRG | Community |
| 3GL | Geelong | 1341 | AM | Moved to FM in 1990 as 3CAT | 3CW (HPON) | Commercial |
| 3HS | Horsham | 1370 | AM | Shut down when 3LK started broadcasting in 1936 | see 3LK | Commercial |
| 3KZ | Melbourne | 1179 | AM | Moved to FM in 1990 as 3KKZ | 3RPH | Commercial |
| 3LK | Horsham | 1089 | AM | Changed call to 3WM sometime between 1976 and 1978 | 3WM | Commercial |
| 3MA | Mildura | 1467 | AM | Moved to FM in 1997 as 3RMR | 3ML | Commercial |
| 3MB | Birchip | 1500 | AM | Shut down when 3CV started broadcasting in 1938 | see 3CV | Commercial |
| 3SR | Shepparton | 1260 | AM | Moved to FM in 1998 as 3SRR | 3SR | Commercial |
| 3TR | Trafalgar | 1280 | AM | Moved to Sale in the 1930s | Commercial | |
| 3TR | Sale | 1242 | AM | Moved to FM in 2002 as 3TFM | 3GV | Commercial |
| 3TT | Melbourne | 1026 | AM | Moved to FM in 1990 as 3TTT | 3PB | Commercial |
| 3UL | Warragul | 0531 | AM | Changed call to 3GG in 1989 | 3GG | Commercial |
| 3WA | Wangaratta | 0756 | AM | Changed call to 3RN in 1991 | 3RN | National |
| 3WR | Wangaratta | AM | Closed in 1925 after broadcasting for 12 months, reopened five years later [1] | Commercial | ||
| 3WR | Wangaratta | AM | Moved to Shepparton in 1934 | Commercial | ||
| 3WR | Shepparton | AM | Changed call to 3SR in 1937 [2] | see 3SR | Commercial | |
| 3WRB | Melbourne Western Suburbs | 097.4 | FM | Shut down in 2020 | defunct | Community |
| 3XY | Melbourne | 1422 | AM | Moved to 693 kHz and changed call to 3EE in 1992 | 3XY (HPON) | Commercial |
| 3YYR | Geelong | 100.3 | FM | Moved to 94.7 MHz and changed call to 3PLS in 2003 | 3MEL | Community |
| 3ZZ | Melbourne | 1220 | AM | Shut down in 1977 | 3EA (1224) | National |