The Philadelphia Warriors won in the 1947 NBA Finals against the Chicago Stags, 4 games to 1.

who won the first nba championship
TEAMSEASONSERIESGPMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF
Philadelphia WarriorsPhiladelphia Warriors1946-47NBA Finals5240.080.028.223.632.073.81,200400109
Baltimore BulletsBaltimore Bullets1947-48NBA Finals6240.074.37.325.095.726.124.333.772.31,44044644170
Minneapolis LakersMinneapolis Lakers1948-49NBA Finals6240.078.526.725.234.273.71,440471162
Minneapolis LakersMinneapolis Lakers1949-50NBA Finals6240.084.529.725.235.271.61,440507179
Rochester RoyalsRochester Royals1950-51NBA Finals7240.083.351.924.329.473.739.924.433.173.71,680583363170182
Minneapolis LakersMinneapolis Lakers1951-52NBA Finals7247.182.646.318.930.774.441.321.130.170.11,730578324132196
Minneapolis LakersMinneapolis Lakers1952-53NBA Finals5240.082.629.078.237.124.634.072.41,200413142
Minneapolis LakersMinneapolis Lakers1953-54NBA Finals7240.074.727.668.440.319.628.468.81,680523201
Syracuse NationalsSyracuse Nationals1954-55NBA Finals7240.090.929.631.742.175.31,680636184
Philadelphia WarriorsPhiladelphia Warriors1955-56NBA Finals5240.097.455.025.836.493.638.924.633.872.81,200487275129127
Boston CelticsBoston Celtics1956-57NBA Finals7254.3115.169.622.642.1114.136.930.942.772.21,780806487158221
St. Louis HawksSt. Louis Hawks1957-58NBA Finals6240.0106.258.235.290.338.935.848.274.41,440637349194
Boston CelticsBoston Celtics1958-59NBA Finals4240.0121.873.828.547.0115.840.627.839.869.896048729511490
Boston CelticsBoston Celtics1959-60NBA Finals7240.0113.164.020.644.9109.940.823.431.674.21,680792448144156
Boston CelticsBoston Celtics1960-61NBA Finals5240.0121.073.826.047.6111.042.925.838.067.91,200605369130136
Boston CelticsBoston Celtics1961-62NBA Finals7243.6117.761.626.746.3105.743.825.133.175.91,705824431187210
Boston CelticsBoston Celtics1962-63NBA Finals6240.0111.361.523.542.7106.740.026.035.273.91,440668369141168
Boston CelticsBoston Celtics1963-64NBA Finals5240.0105.260.623.840.499.240.724.435.069.71,200526303119146
Boston CelticsBoston Celtics1964-65NBA Finals5240.0123.463.224.648.6113.642.826.235.074.91,200617316123138
Boston CelticsBoston Celtics1965-66NBA Finals7243.6118.161.421.044.4101.643.729.335.482.71,705827430147208
Philadelphia 76ersPhiladelphia 76ers1966-67NBA Finals6244.2124.570.828.847.8106.544.928.847.061.31,465747425173156
Boston CelticsBoston Celtics1967-68NBA Finals6244.2116.055.522.243.795.046.028.739.073.51,465696333133156
Boston CelticsBoston Celtics1968-69NBA Finals7240.0105.955.419.341.699.441.822.728.779.11,680741388135209
New York KnicksNew York Knicks1969-70NBA Finals7247.1112.348.927.447.4103.146.017.422.976.31,730786342192178
Milwaukee BucksMilwaukee Bucks1970-71NBA Finals4240.0106.354.523.323.042.884.850.420.827.076.9960425218939284
Los Angeles LakersLos Angeles Lakers1971-72NBA Finals5245.0107.055.819.415.640.897.042.125.432.877.41,2255352799778106
New York KnicksNew York Knicks1972-73NBA Finals5240.0100.646.423.614.843.093.645.914.619.276.01,20050323211874135
Boston CelticsBoston Celtics1973-74NBA Finals7250.796.742.425.48.30.715.340.092.443.316.721.677.51,755677297178585107153
Golden State WarriorsGolden State Warriors1974-75NBA Finals4240.099.553.820.513.88.026.540.891.344.718.025.570.6960398215825532106116
Boston CelticsBoston Celtics1975-76NBA Finals6252.5103.856.223.56.81.724.038.589.343.126.832.782.11,5156233371414110144174