Klay Thompson and Stephen Curry are tied for the most threes in a single NBA playoff run, with 98 three-pointers.

year by year most three pointer make in nba playoffs
Interpreted as:
year by year most three pointer make by a player in NBA playoffs
2015-16Thompson2014-15Curry2018-19Curry2015-16Curry2016-17Curry2018-19Thompson2017-18Thompson2015-16Smith2017-18Curry2019-20Murray2019-20Robinson2020-21Middleton2018-19Lillard2020-21Jackson1999-00Miller2014-15Thompson2000-01Allen2009-10Allen1994-95Scott2019-20Crowder2018-19Leonard2012-13Green2007-08Allen2020-21Crowder1994-95Miller98989280727067656462626059585857575656555555555454
NAMESEASONTMGP3PMMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Klay ThompsonKlay Thompson2015-16GSWGSW249835.424.33.72.31.10.42.08.418.944.49.642.43.44.085.484958288542694753+64
Stephen CurryStephen Curry2014-15GSWGSW219839.328.35.06.41.90.13.99.520.945.611.042.24.65.583.58265941051343938247+163
Stephen CurryStephen Curry2018-19GSWGSW229238.528.26.05.71.10.23.08.619.644.111.137.76.77.194.38466201321262446668+120
Stephen CurryStephen Curry2015-16GSWGSW188034.125.15.55.21.40.34.28.218.843.811.040.44.24.691.661445299932657539+48
Stephen CurryStephen Curry2016-17GSWGSW177235.428.16.26.72.00.23.48.918.448.410.141.96.16.790.46014771061143445837+245
Klay ThompsonKlay Thompson2018-19GSWGSW217039.020.74.12.11.30.71.87.817.145.67.544.31.82.090.2818435864428153859+21
Klay ThompsonKlay Thompson2017-18GSWGSW216737.819.64.11.80.80.31.57.616.346.57.542.71.31.587.179441286381663148+147
JR SmithJR Smith2015-16CLECLE216534.811.53.21.41.20.20.53.99.043.67.243.00.61.061.973024267292651155+166
Stephen CurryStephen Curry2017-18GSWGSW156437.025.56.15.41.70.72.99.120.345.110.839.53.03.195.7555383918126114338+147
Jamal MurrayJamal Murray2019-20DENDEN196239.626.54.86.60.90.32.89.819.450.57.245.33.74.189.7753504921261865342+9
Duncan RobinsonDuncan Robinson2019-20MIAMIA216228.611.72.81.80.70.30.83.68.442.67.439.71.61.886.860024558381461665+25
Khris MiddletonKhris Middleton2020-21MILMIL236040.123.67.65.11.50.23.28.619.743.87.634.33.74.288.79225421741183547458+119
Damian LillardDamian Lillard2018-19PORPOR165940.626.94.86.61.70.33.88.620.641.89.937.35.97.183.3650430761062756040-13
Reggie JacksonReggie Jackson2020-21LACLAC195832.717.83.23.40.90.21.56.413.348.47.540.81.92.287.862233860651832849+107
Reggie MillerReggie Miller1999-00INDIND225840.524.02.42.71.00.51.37.917.545.26.739.55.55.993.8892527536023102837+101
Klay ThompsonKlay Thompson2014-15GSWGSW215736.218.63.92.60.80.92.07.115.944.67.039.01.72.180.0761391815416194164+120
Ray AllenRay Allen2000-01MILMIL185742.725.14.16.01.30.62.48.818.447.76.647.94.44.891.97684527410824104344+66
Ray AllenRay Allen2009-10BOSBOS245638.516.13.32.60.90.11.55.512.743.16.038.62.93.386.392538780632233674+60
Dennis ScottDennis Scott1994-95ORLORL215635.514.73.02.11.00.21.65.212.641.37.237.11.61.985.074630863452253362
Jae CrowderJae Crowder2019-20MIAMIA215531.412.05.61.90.70.60.73.99.640.37.734.21.72.276.16602521173914121555-25
Kawhi LeonardKawhi Leonard2018-19TORTOR245539.130.59.13.91.70.73.110.120.749.06.037.98.09.088.49397322189440177456+156
Danny GreenDanny Green2012-13SASSAS215531.911.14.11.51.01.10.94.08.944.65.448.20.60.780.0669233873222231951+29
Ray AllenRay Allen2007-08BOSBOS265538.015.63.82.70.90.31.55.112.042.85.339.63.23.591.398740598712483863+152
Jae CrowderJae Crowder2020-21PHXPHX225433.110.86.11.90.90.80.93.58.441.36.538.01.41.688.67292371344119181967+115
Reggie MillerReggie Miller1994-95INDIND175437.725.53.62.10.90.22.38.117.147.67.542.26.17.186.064143461361543935
StatMuse has season-level data for three-pointers going back to the 1980 playoffs.