The Metropolitan Atlanta Rapid Transit Authority (MARTA) operates a number of bus routes in the Atlanta metro region. The main system operates in Fulton, DeKalb, and Clayton counties, although some routes travel into other suburban counties. In , the system had a ridership of , or about per weekday as of .

MARTA developed a "wish list" in 2017 to expand service, including buses. However, there was also a plan in 2017 to reduce some bus services, which outraged residents whose buses would have been eliminated. By 2023, their plans for expanded light rail were modified to include bus rapid transit.

In 2025, MARTA announced a complete revamp of their bus system, called "NextGen Bus Network", reducing the number of bus routes from about 113 to 81. The revamp was launched on April 18, 2026.

Bus routes MARTA operates 81 local bus routes and one bus rapid transit route called the Rapid A-Line. Along with these routes, MARTA also has 12 demand-responsive transit zones, known as MARTA Reach. RouteNameTerminalsMajor streets traveledService notes1Joseph E. Lowery Blvd/17th StMidtown Atlanta Arts Center↔West End West End17th St, Northside Dr, Joseph E. Lowery Blvd Frequency: Every 20 min2Donald Lee Hollowell Pkwy/Ponce de Leon Ave BoltonUPS Smart Hub↔Edgewood Edgewood/Chandler ParkPonce de Leon Ave, North Ave, Donald Lee Hollowell Pkwy Frequency: Every 10 min Alternating trips short-turn at Northside Dr3aMartin Luther King Jr. DrCollier HeightsHarwell Rd & Kingston Rd ↔Sweet Auburn King MemorialBolton Rd, Fairburn Rd, Collier Rd, Martin Luther King Jr. Dr, Decatur St Frequency: Every 30 min Alternating trips run to Boulder Park (3b) or Collier Heights (3a)3bBoulder ParkDollar Mill Rd & Boulder Park Dr↔Bakers Ferry Rd/Boulder Park Dr, Martin Luther King Jr. Dr, Decatur St4Moreland AveInman Park, Reynoldstown Inman Park/Reynoldstown↔Rebel Valley ForestJonesboro Rd & Hargis StMoreland Ave, Constitution Rd/Forrest Park Rd Frequency: Every 30 min5Piedmont Rd/Sandy SpringsDunwoody Dunwoody↔Lindbergh/Morosgo Lindbergh CenterHammond Dr, Roswell Rd, Piedmont Rd Frequency: Every 20 min7Boulevard/McDonough BlvdLindbergh/Morosgo Lindbergh Center↔West End West EndPiedmont Ave, Monroe Dr, Boulevard, McDonough Blvd Frequency: Every 30 min10AUC/Hollywood RdRiverside, Whittier Mill VillageJames Jackson Pkwy↔Sweet Auburn King MemorialDecatur St, Atlanta Student Movement Blvd, Ralph David Abernathy Blvd, Hollywood Rd Frequency: Every 30 min11Defoor Ave/Virginia HighlandBrookhavenCHOA Arthur M. Blank Hospital↔Underwood HillsHills AveBriarcliff Rd, Clifton Rd, Virginia Ave, 10th St, Northside Dr, Defoors Ave Frequency: Every 30 min12Howell Mill RdCumberlandCobbLinc Cumberland Transfer Center↔Midtown Atlanta MidtownCobb Pkwy, Northside Pkwy, Howell Mill Rd, 10th St Frequency: Every 30 min14Blandtown/Hightower RdAdamsville Hamilton E. Holmes↔H. E. Holmes Dr, Hollywood Rd, Bolton Rd, Marietta Blvd, Huff Rd, 10th St Frequency: Every 30 min15Clifton Rd/Candler RdLindbergh/Morosgo Lindbergh Center↔DecaturGSU Perimeter College DecaturLavista Rd, Clifton Rd, Candler Rd, Panthersville Rd Frequency: Every 15 min17Clairmont Rd/N Druid Hills RdBuckhead Lenox↔Decatur AvondaleN Druid Hills Rd, Clairmont Rd, E Ponce de Leon Ave/E College Ave/Commerce Dr Frequency: Every 30 min20South DeKalb/Downtown AtlantaDowntown Atlanta Georgia State↔DecaturNew Snapfinger Woods DrDecatur St/Martin Luther King Jr. Dr, I-20, Rainbow Dr Frequency: Every 15 min Alternating off-peak trips short-turn at South DeKalb Transfer Point21Memorial Drive ITP↔DeKalb County KensingtonDecatur St/Piedmont Ave, Memorial Dr Frequency: Every 30 min22Glenwood↔DeKalb County Indian CreekDecatur St/Piedmont Ave, Glenwood Ave, S Indian Creek Dr Frequency: Every 30 min23Peachtree Rd/BuckheadMidtown Atlanta Arts Center↔Chamblee ChambleePeachtree Rd Frequency: Every 20 min Alternating trips short-turn at Brookhaven/Oglethorpe26aJames Jackson Pkwy/Perry BlvdAdamsville Hamilton E. Holmes↔Bankhead BankheadH. E. Holmes Dr, James Jackson Pkwy, Northwest Dr, Perry Blvd, Marietta Blvd Frequency: Every 30 min Alternating trips run via James Jackson Pkwy (26b) or Northwest Dr (26a)26bH. E. Holmes Dr, James Jackson Pkwy, Perry Blvd, Marietta Blvd32Bouldercrest RdInman Park, Reynoldstown Inman Park/Reynoldstown↔EllenwoodLinecrest RdMoreland Ave, Boulercrest Rd, River Rd Frequency: Every 40 min342nd Ave/Clifton Springs RdKirkwood East Lake↔DecaturSouth DeKalb Transfer Point2nd Ave, Gresham Rd, Clifton Springs Rd Frequency: Every 40 min39Buford HwyDoraville Doraville↔Lindbergh/Morosgo Lindbergh CenterBuford Hwy, Sidney Marcus Blvd Frequency: Every 15 min42McDaniel St/Pryor RdDowntown Atlanta Georgia State↔Lakewood Lakewood/Fort McPhersonDecatur St/Martin Luther King Jr. Dr, McDaniel St, Pryor Rd, Langford Pkwy Frequency: Every 30 min46I-85 Access Rd/BriarwoodBrookhaven Brookhaven/Oglethorpe↺BriarwoodI-85 Access RdsBriarwood RdCounterclockwise Loop:I-85 Access Rds, Cliff Valley Way, Briarfcliff Rd, Century Blvd Frequency: Every 40 min48I-85 Access Rd/North BrookhavenDunwoody Dunwoody↺BrookhavenI-85 Access RdsAshford Dunwoody Rd, Johnson Ferry Rd, Clairmont RdCounterclockwise Loop:I-85 Access Rds, Dresden Dr Frequency: Every 40 min49McDonough Blvd/Hill StMidtown Atlanta North Avenue↔DeKalb CountyMetro Transitional CenterCourtlandt St/Piedmont Ave, Hill St, McDonough Blvd, Moreland Ave Frequency: Every 20 min51Joseph E. Boone Blvd/Ralph McGill BlvdAdamsville Hamilton E. Holmes↔Inman Park, Reynoldstown Inman Park/ReynoldstownJoseph E. Boone Blvd, Ralph McGill Blvd, Moreland Ave Frequency: Every 20 min52Marietta RdBoltonMoores Mill Shopping Center↔Bankhead BankheadBolton Rd, Marietta Rd, Marietta Blvd Frequency: Every 40 min55Jonesboro RdDowntown Atlanta Georgia State↔Forest ParkJonesboro Rd & Main StPryor St/Central Ave, Jonesboro Rd Frequency: Every 30 min66Brownlee Rd/Harbin RdAdamsville Hamilton E. Holmes↔MellwoodCamp Creek ApartmentsMartin Luther King Jr. Dr, Lynhurst Dr, Harbin Rd, Childress Dr, Greenbriar Pkwy Frequency: Every 40 min67Peyton Pl↺AdamsvillePeyton PlCounterclockwise Loop:Martin Luther King Jr. Dr, Harland Rd, Peyton Rd, Peyton Pl Frequency: Every 40 min68Donnelly Ave/BeecherCascade HeightsBlvd. Grenada & Essex Ave↔West End West EndLee St, Donnelly Ave, Beecher Rd Frequency: Every 60 min71aCascade RdAshley CourtsAshley Cascade Apartments↔Ralph David Abernathy Blvd, Cascade Rd Frequency: Every 20 min Alternating trips run to Ashley Courts (71a) every 40 min or South Fulton (71b) every 60 min71bSouth FultonBoat Rock Transfer Point↔Ralph David Abernathy Blvd, Cascade Rd, Fulton Industrial Blvd73Fulton Industrial Blvd↔Adamsville Hamilton E. HolmesMartin Luther King Jr. Dr, Fulton Industrial Blvd Frequency: Every 15 min74Flat Shoals RdInman Park, Reynoldstown Inman Park/Reynoldstown↔EllenwoodS Park BlvdFlat Shoals Rd, Panthersville Rd, Bouldercrest Rd Frequency: Every 40 min75Lawrenceville HwyDecatur Avondale↔Stone MountainGoldsmith P&RLawrenceville Hwy, Montreal Rd, Northlake Pkwy, Mountain Industrial Blvd Frequency: Every 30 min78Cleveland AveEast Point East Point↔Browns Mill ParkJonesboro RdCleveland Ave Frequency: Every 15 min79Sylvan Rd/HapevilleOakland City Oakland City↔HapevilleDowntown HapevilleSylvan Rd, N Central Ave Frequency: Every 30 min80Headland Dr/SandtownEast Point East Point↔South FultonBoat Rock Transfer PointHeadland Dr, Campbelton Rd, Fulton Industrial Blvd Frequency: Every 60 min81Venetian HillsWest End West End↔East Point East PointOglethorpe Ave, Venitian Dr, Conally Dr Frequency: Every 40 min83Campbellton RdOakland City Oakland City↔Ben Hill AcresBarge Road P&RCampbellton Rd, Greenbriar Pkwy Frequency: Every 15 min84Washington Rd/Camp Creek MarketplaceEast Point East Point↔East PointCamp Creek MarketplaceWashington Rd, N Commerce Dr Frequency: Every 15 min85RoswellSandy Springs North Springs↔AlpharettaMansell Road P&RGA-400, Roswell Rd, Atlanta St, Alpharetta St, Mansell Rd Frequency: Every 40 min87Roswell Rd/DunwoodyDunwoody Dunwoody↔Sandy Springs North SpringsGlenridge Dr, Roswell Rd, GA-400 Frequency: Every 30 min88Dunwoody Village/Georgetown↔Doraville DoravilleAshford Dunwoody Rd, Chamblee Dunwoody Rd, N Shallowford Rd Frequency: Every 60 min89aOld National HwyUnion CitySouth Fulton Transfer Point↔College Park College ParkMain St, Old National Hwy, Flat Shoals Rd, Shannon Pkwy Frequency: Every 15 min Trips alternate between Union City (89a/b) & Riverdale (89c) Trips to Union City run via Shannon Pkwy (89a) or Oakley Rd (89b)89b↔Main St, Old National Hwy, Flat Shoals Rd, Oakley Rd89cRiverdaleRiverdale P&R↔Main St, Old National Hwy, GA-138, GA-8595Metropolitan PkwyWest End West End↔East PointSylvan RdMetropolitan Pkwy, Cleveland Ave Frequency: Every 15 min96Dogwood Dr/Virginia AveLakewood Lakewood/Fort McPherson↔College Park College ParkLangford Pkwy, Metropolitan Pkwy, Dogwood Dr, Virginia Ave Frequency: Every 20 min104Winters Chapel RdSandy SpringsDunwoody Club Dr↔Doraville DoravilleNew Peachtree Rd, Winters Chapel Rd, Peachtree Industrial Blvd Access Rd, Tilly Mill Rd Frequency: Every 40 min109Peachcrest Rd/Columbia DrDeKalb County Kensington↔DecaturSouth DeKalb Transfer PointPeachcrest Rd, Columbia Dr, Clifton Springs Rd Frequency: Every 30 min111S Hairston Rd/Wesley Chapel RdDeKalb County Indian Creek↔Redan Rd, S Hairston Rd, Wesley Chapel Rd, Flat Shoals Pkwy Frequency: Every 40 min114Columbia Dr/Snapfinger Woods DrDecatur Decatur↔StonecrestThe Mall at StonecrestS Columbia Dr, Snapfinger Woods Dr Frequency: Every 30 min115Covington HwyDecatur Avondale↔Covington Hwy Frequency: Every 20 min116Redan RdDeKalb County Kensington↔Redan Rd, S Stone Mountain-Lithonia Rd Frequency: Every 30 min117Stone Mountain/Panola RdStonecrestFairington Pkwy↔Stone MountainGoldsmith P&RFairington Pkwy, Panola Rd, S Stone Mountain-Lithonia Rd Frequency: Every 30 min Continues westbound as Route 121118Rockbridge RdDecatur Avondale↔Stone MountainN Hairston RdChurch St, N Decatur Rd, Rockbridge Rd, N Stone Mountain-Lithonia Rd, E Ponce de Leon Ave Frequency: Every 30 min Continues westbound as Route 120119Hairston RdDeKalb County Kensington↔Stone MountainGoldsmith P&RKensington Rd, Redan Rd, Hairston Rd Frequency: Every 30 min120E Ponce de Leon AveDecatur Avondale↔Stone MountainN Hairston RdE Ponce de Leon Ave Frequency: Every 30 min Continues eastbound as Route 118121Memorial Dr OTP/PleasantdaleDoraville Doraville↔DeKalb County KensingtonPleasantdale Rd, N Hairston Rd, Memorial Dr Frequency: Every 15 min Trips alternate between Doraville & Stone Mountain Stone Mountain trips continue southbound as Route 117Stone MountainGoldsmith P&R↔N Hairston Rd, Memorial Dr125Clarkston/Embry HillsChamblee Chamblee↔Chamblee Tucker Rd, Henderson Mill Rd, Lawrenceville Hwy, N Indian Creek Dr, Memorial Dr Frequency: Every 30 min127Winn WayDecatur Avondale↔DecaturEmory Decatur HospitalWinn Way Frequency: Every 40 min128Valley Brook Rd↔DecaturLulah HillsN Arcadia Ave, DeKalb Industrial Way/N Decatur Rd, Lawrenceville Hwy/Valley Brook Rd Frequency: Every 40 min132Tilly Mill RdChambleeChamblee ↔Sandy SpringsDunwoody Club DrPeachtree Blvd, N Peachtree Rd, Tilly Mill Rd Frequency: Every 60 min140aNorth Point PkwySandy Springs North Springs↔AlpharettaDeerfield Place Shopping CenterGA-400, North Point Pkwy, Haynes Bridge Rd, Webb Bridge Rd, Windward Pkwy Frequency: Every 20 min