Magic Johnson has the most career assists in the NBA Finals, with 584 assists.

players with highest assists in games of finals
JohnsonJamesWestRussellCousyJohnsonJordanPippenHavlicekBryantBirdGreenAbdul-JabbarCooperCurryJonesBaylorAingeJonesFrazierChamberlainParkerThomasRondoWade584430306265236228209207195187187182181178174155154150145139134130127126125
NAMESERIESGPASTMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBSTLBLKTOVPF+/-
Magic JohnsonMagic JohnsonNBA Finals5058440.919.47.911.72.00.33.86.813.151.60.20.823.75.76.587.42,04497139710216190147
LeBron JamesLeBron JamesNBA Finals5543042.528.410.27.81.70.83.910.722.148.41.85.235.25.27.173.12,3371,5625619346217130-86
Jerry WestJerry WestNBA Finals5530643.330.55.05.611.124.245.98.310.082.62,3801,679277159
Bill RussellBill RussellNBA Finals5526546.717.524.84.86.413.148.54.87.563.52,5719631,363174
Bob CousyBob CousyNBA Finals2523635.215.63.79.46.017.434.63.54.675.08793899374
Dennis JohnsonDennis JohnsonNBA Finals3722840.118.34.76.21.31.12.76.816.342.00.21.016.04.55.581.01,4836761754839100106
Michael JordanMichael JordanNBA Finals3520943.033.66.06.01.80.72.812.526.048.11.23.336.87.49.180.61,5061,176211622399103+45
Scottie PippenScottie PippenNBA Finals3520742.019.08.35.91.91.13.37.016.542.50.93.325.64.15.474.71,4706642926739117118+38
John HavlicekJohn HavlicekNBA Finals4719539.821.77.44.11.20.28.319.742.15.16.084.81,8721,020350153154
Kobe BryantKobe BryantNBA Finals3718742.725.35.75.11.80.93.39.021.841.21.34.131.46.07.184.81,5819372116533123118+36
Larry BirdLarry BirdNBA Finals3118742.823.111.66.02.00.82.98.418.345.80.61.542.25.76.587.21,32671636163249180
Draymond GreenDraymond GreenNBA Finals2718238.912.79.36.71.81.02.74.410.342.61.24.030.32.83.676.51,051344252492872113+120
Kareem Abdul-JabbarKareem Abdul-JabbarNBA Finals5618137.223.59.13.20.92.22.79.718.652.30.00.00.04.15.870.02,0821,31750745116121196
Michael CooperMichael CooperNBA Finals4617830.610.32.93.91.30.41.33.98.744.70.82.038.01.82.280.61,406474135592060159
Stephen CurryStephen CurryNBA Finals2817439.426.55.76.21.50.43.88.419.942.04.311.238.55.45.992.71,102741160431010578+103
K.C. JonesK.C. JonesNBA Finals4215523.06.82.63.72.66.440.31.72.471.0964287109128
Elgin BaylorElgin BaylorNBA Finals4015442.026.813.73.910.223.343.86.48.376.51,6811,070546122
Danny AingeDanny AingeNBA Finals3715028.310.42.64.11.20.11.54.29.047.00.71.841.51.21.675.91,0483839546456106
Sam JonesSam JonesNBA Finals5514531.719.55.02.67.917.046.33.84.682.91,7421,075273143
Walt FrazierWalt FrazierNBA Finals1713944.618.97.58.27.614.153.83.75.172.475932112855
Wilt ChamberlainWilt ChamberlainNBA Finals3513447.318.624.63.87.513.555.93.59.437.71,657652862101
Tony ParkerTony ParkerNBA Finals2913036.316.52.44.50.60.12.46.714.845.60.71.935.22.43.863.11,053479711837054+50
Isiah ThomasIsiah ThomasNBA Finals1612737.222.64.27.92.10.33.88.317.348.01.12.446.24.86.178.6595361673456155
Rajon RondoRajon RondoNBA Finals1912631.010.75.26.61.40.32.04.410.541.70.51.630.01.52.851.9590203982653836+1
Dwyane WadeDwyane WadeNBA Finals2912538.823.95.74.31.81.02.98.718.247.60.51.631.16.08.174.81,12569316653308575-51
StatMuse has game-level data for assists going back to the 1960 Finals.