Russell Westbrook has gotten the most triple-doubles in a season, with 42 triple-doubles in 2016-17.

who has the most triple doubles in a season
2016-17Westbrook1961-62Robertson2020-21Westbrook2018-19Westbrook1967-68Chamberlain1963-64Robertson1960-61Robertson2017-18Westbrook2016-17Harden1966-67Chamberlain1964-65Robertson1962-63Robertson2021-22Jokic2017-18James2015-16Westbrook1981-82Johnson2019-20Doncic1988-89Johnson2020-21Jokic1986-87Lever1982-83Johnson1988-89Jordan42413834312626252222222019181818171716161615
NAMESEASONTMGPTD3MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Russell WestbrookRussell Westbrook2016-17
OKCOKC
814234.631.610.710.41.60.45.410.224.042.52.57.234.38.810.484.52,8022,55886484013231438190+251
Oscar RobertsonOscar Robertson1961-62
CINCIN
794144.330.812.511.411.022.947.88.911.080.33,5032,432985899258
Russell WestbrookRussell Westbrook2020-21
WASWAS
653836.422.211.511.71.40.44.88.419.043.91.34.231.54.26.465.62,3691,4457507638923312190-87
Russell WestbrookRussell Westbrook2018-19
OKCOKC
733436.022.911.110.71.90.54.58.620.242.81.65.629.04.16.265.62,6291,67580778414233325245+292
Wilt ChamberlainWilt Chamberlain1967-68
PHIPHI
823146.824.323.88.610.016.859.54.311.438.03,8361,9921,952702160
Oscar RobertsonOscar Robertson1963-64
CINCIN
792645.131.49.911.010.622.048.310.111.985.33,5592,480783868280
Oscar RobertsonOscar Robertson1960-61
CINCIN
712642.730.510.19.710.622.547.39.211.282.23,0322,165716690219
Russell WestbrookRussell Westbrook2017-18
OKCOKC
802536.425.410.110.31.80.34.89.521.144.91.24.129.85.27.173.72,9142,02880482014720381200+383
James HardenJames Harden2016-17
HOUHOU
812236.429.18.111.21.50.55.78.318.944.03.29.334.79.210.984.72,9472,35665990712138464215+425
Wilt ChamberlainWilt Chamberlain1966-67
PHIPHI
812245.524.124.27.89.714.268.34.810.844.13,6821,9561,957630143
Oscar RobertsonOscar Robertson1964-65
CINCIN
752245.630.49.011.510.822.448.08.910.683.93,4212,279674861205
Oscar RobertsonOscar Robertson1962-63
CINCIN
802044.028.310.49.510.319.951.87.79.581.03,5212,264835758293
Nikola JokicNikola Jokic2021-22
DENDEN
741933.527.113.87.91.50.93.810.317.758.31.33.933.75.16.381.02,4762,0041,01958410963281191+442
LeBron JamesLeBron James2017-18
CLECLE
821836.927.58.69.11.40.94.210.519.354.21.85.036.74.76.573.13,0262,25170974711671347136+104
Russell WestbrookRussell Westbrook2015-16
OKCOKC
801834.423.57.810.42.00.34.38.218.145.41.34.329.65.87.281.22,7491,87862683416320342200+635
Magic JohnsonMagic Johnson1981-82
LALLAL
781838.318.69.69.52.70.43.77.113.353.70.10.420.74.25.676.02,9911,44775174320834286223
Luka DoncicLuka Doncic2019-20
DALDAL
611733.628.89.48.81.00.24.39.520.646.32.88.931.67.09.275.82,0471,7595735386214260153+253
Magic JohnsonMagic Johnson1988-89
LALLAL
771737.522.57.912.81.80.34.17.514.850.90.82.431.46.77.391.12,8861,73060798813822312172
Nikola JokicNikola Jokic2020-21
DENDEN
721634.626.410.88.31.30.73.110.218.056.61.33.338.84.85.586.82,4881,8987805999548222192+384
Fat LeverFat Lever1986-87
DENDEN
821637.218.98.98.02.50.42.07.816.746.90.31.123.93.03.878.23,0541,55272965420134167219
Magic JohnsonMagic Johnson1982-83
LALLAL
791636.816.88.610.52.20.63.86.511.854.80.00.30.03.84.880.02,9071,32668382917647301200
Michael JordanMichael Jordan1988-89
CHICHI
811540.232.58.08.02.90.83.611.922.253.80.31.227.68.39.885.03,2552,63365265023465290247
Dejounte MurrayDejounte Murray2021-22
SASSAS
681334.821.18.39.22.00.32.68.418.346.21.44.332.72.93.679.42,3661,43856362713823180138+49
LeBron JamesLeBron James2019-20
LALLAL
671334.625.37.810.21.20.53.99.619.449.32.26.334.83.95.769.32,3161,6985256847836261118+441
Nikola JokicNikola Jokic2019-20
DENDEN
731332.019.99.77.01.20.63.17.714.752.81.13.531.43.44.181.72,3361,4567115128544226222+255
StatMuse has season-level data for triple-doubles going back to the 1950-51 season.