The Boston Celtics have the lowest free-throw percentage by a team in a season, at 59.0 percent in 1946-47.

which team has the lowest free throw percentage in a season

TEAM	FT%	SEASON	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Boston Celtics	59.0	1946-47	60	241.3	60.1		7.8				23.3	85.6	27.2				13.5	22.9	14,475	3,605		470				1,202
Chicago Stags	60.6	1946-47	61	241.2	77.0		7.1				30.8	103.4	29.8				15.4	25.4	14,715	4,697		436				1,473
Providence Steam Rollers	61.3	1947-48	48	241.0	69.1		7.2				26.4	96.5	27.4				16.3	26.6	11,570	3,318		347				1,105
St. Louis Bombers	61.6	1946-47	61	243.3	66.6		4.8				26.2	96.3	27.2				14.1	23.0	14,840	4,064		292				1,234
Detroit Falcons	61.8	1946-47	60	240.4	63.3		8.0				24.0	97.4	24.6				15.4	24.9	14,425	3,797		482				1,351
Toronto Huskies	62.2	1946-47	60	240.4	66.6		7.7				25.3	94.5	26.7				16.1	25.9	14,425	3,996		463				1,271
Cleveland Rebels	63.2	1946-47	60	242.1	70.9		8.2				27.9	95.0	29.4				15.1	23.8	14,525	4,251		494				1,246
Philadelphia 76ers	63.5	1967-68	82	241.2	122.6	72.1	26.8				48.4	102.6	47.1				25.9	40.7	19,780	10,051	5,914	2,197				1,851
Boston Celtics	63.6	1948-49	60	241.3	76.6		18.9				28.4	91.4	31.1				19.7	30.9	14,475	4,593		1,135				1,382
San Francisco Warriors	63.8	1963-64	80	241.6	107.7	68.7	23.7				42.6	97.2	43.8				22.5	35.3	19,325	8,614	5,499	1,899				1,978
San Francisco Warriors	64.0	1964-65	80	241.9	105.8	71.4	20.7				41.5	103.1	40.3				22.7	35.6	19,350	8,465	5,715	1,653				2,002
Los Angeles Lakers	65.0	1968-69	82	242.7	112.2	57.9	25.2				43.6	92.9	46.9				25.1	38.5	19,905	9,204	4,749	2,068				1,773
Philadelphia Warriors	65.1	1960-61	79	241.3	121.0	75.2	24.8				47.7	112.4	42.4				25.6	39.3	19,060	9,558	5,938	1,959				1,936
Pittsburgh Ironmen	65.3	1946-47	60	240.8	61.2		4.5				22.4	82.7	27.1				16.4	25.1	14,450	3,674		272				1,360
Providence Steam Rollers	65.5	1946-47	60	241.7	72.5		8.0				27.2	93.0	29.2				18.2	27.8	14,500	4,350		481				1,215
Boston Celtics	65.9	1947-48	48	242.6	68.8		7.6				25.9	90.1	28.7				17.1	26.0	11,645	3,303		364				1,065
Chicago Stags	65.9	1947-48	48	241.6	75.8		9.0				29.0	97.6	29.7				17.9	27.2	11,595	3,640		432				1,138
Orlando Magic	66.0	2011-12	66	241.9	94.2	42.5	20.0	6.8	4.2	14.9	34.5	78.2	44.1	10.2	27.0	37.5	15.1	22.8	15,965	6,215	2,802	1,321	451	275	984	1,168
New York Knicks	66.1	1946-47	60	243.3	64.7		7.6				24.4	87.6	27.9				15.9	24.0	14,600	3,881		457				1,218
Portland Trail Blazers	66.2	1995-96	82	242.7	99.3	45.6	21.5	7.2	5.1	16.8	37.4	81.6	45.8	5.9	16.6	35.3	18.7	28.3	19,905	8,145	3,737	1,760	594	417	1,377	1,859
Golden State Warriors	66.4	1993-94	82	241.2	107.9	43.6	26.8	9.8	6.2	17.5	42.8	87.1	49.2	3.5	10.5	33.9	18.6	28.1	19,780	8,844	3,579	2,198	804	511	1,433	1,789
Philadelphia 76ers	66.4	1965-66	80	240.6	117.3	70.7	23.8				45.6	102.4	44.6				26.1	39.3	19,250	9,387	5,652	1,905				2,094
Detroit Pistons	66.8	2015-16	82	242.4	102.0	46.3	19.4	7.0	3.7	13.5	37.9	86.4	43.9	9.0	26.2	34.5	17.1	25.5	19,880	8,361	3,798	1,594	573	304	1,110	1,557
Orlando Magic	66.9	1994-95	82	243.0	110.9	44.0	27.8	8.2	6.0	15.8	42.2	84.1	50.2	6.4	17.2	37.0	20.1	30.1	19,930	9,091	3,606	2,281	672	488	1,297	1,726
San Francisco Warriors	66.9	1962-63	80	242.8	118.5	67.0	23.8				47.6	105.6	45.0				23.4	35.0	19,425	9,480	5,359	1,906				1,882