The Detroit Lions and the Baltimore Colts are tied for allowing the most touchdowns in a season, with 68 touchdowns allowed.

most td allowed by a team in one season
2020Lions1981Colts1966Giants2008Lions1950Colts2011Buccaneers1963Broncos1980Saints1961Raiders2015Saints2013Redskins1990Browns1986Buccaneers1984Vikings2020Cowboys2020Jaguars2019Dolphins2018Buccaneers2013Vikings2009Lions2001Colts1985Falcons1983Chargers6868666363616160605959595959575757575757575757
TEAMSEASONGPOPP TDWLTTDPTSPPGOPP PTSOPP PPG1DWN3DWN%4DWN%
Detroit LionsDetroit Lions2020166851104537723.651932.435041.150.0
Baltimore ColtsBaltimore Colts1981166821403325916.253333.3274
New York GiantsNew York Giants1966146611213126318.850135.8236
Detroit LionsDetroit Lions2008166301602926816.851732.323428.850.0
Baltimore ColtsBaltimore Colts1950126311103121317.846238.5188
Tampa Bay BuccaneersTampa Bay Buccaneers2011166141203028717.949430.927736.938.1
Denver BroncosDenver Broncos1963146121113630121.547333.8230
New Orleans SaintsNew Orleans Saints1980166011503729118.248730.4285
Oakland RaidersOakland Raiders1961146021202923716.945832.7200
New Orleans SaintsNew Orleans Saints201516597905140825.547629.838147.762.5
Washington RedskinsWashington Redskins2013165931303933420.947829.932940.430.0
Cleveland BrownsCleveland Browns1990165931302722814.346228.9259
Tampa Bay BuccaneersTampa Bay Buccaneers1986165921402723914.947329.6273
Minnesota VikingsMinnesota Vikings1984165931303127617.348430.3289
Dallas CowboysDallas Cowboys2020165761004239524.747329.637140.554.8
Jacksonville JaguarsJacksonville Jaguars2020165711503730619.149230.831040.626.9
Miami DolphinsMiami Dolphins2019165751103430619.149430.931534.346.4
Tampa Bay BuccaneersTampa Bay Buccaneers2018165751104939624.846429.038846.069.2
Minnesota VikingsMinnesota Vikings2013165751014539124.448030.030936.452.6
Detroit LionsDetroit Lions2009165721402826216.449430.928135.926.9
Indianapolis ColtsIndianapolis Colts2001165761004741325.848630.434341.562.5
Atlanta FalconsAtlanta Falcons1985165741203028217.645228.3296
San Diego ChargersSan Diego Chargers1983165761004535822.446228.9361
New York JetsNew York Jets1975145731103225818.443330.9266
Washington RedskinsWashington Redskins195412573902720717.343236.0188
Carolina PanthersCarolina Panthers2019165651103834021.347029.433531.950.0
Oakland RaidersOakland Raiders2018165641203029018.146729.230037.143.8
Cleveland BrownsCleveland Browns2016165611502926416.545228.329636.372.2
San Francisco 49ersSan Francisco 49ers2016165621403630919.348030.028735.152.6
Chicago BearsChicago Bears201316568805244527.847829.934442.161.5
Detroit LionsDetroit Lions200716567903734621.644427.830332.640.0
Oakland RaidersOakland Raiders2004165651103532020.044227.627535.550.0
StatMuse has team, season-level data for opponent touchdowns going back to the 1932 season.

Try also: