Wayne Ellington has drained the most threes by a player off the bench in a season, with 218 three-pointers in 2017-18.

most 3 pointers made by a bench player in a season

NAME	3PM	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Wayne Ellington	218	2017-18	MIA	75	26.2	11.0	2.8	1.0	0.7	0.1	0.7	3.6	9.0	40.3	7.4	39.1	0.9	1.0	89.0	1,966	825	213	74	52	8	51	94	+138
Terrence Ross	217	2018-19	ORL	81	26.5	15.1	3.5	1.7	0.9	0.4	1.1	5.4	12.7	42.8	7.0	38.3	1.6	1.8	87.5	2,150	1,223	280	135	72	29	90	119	+5
Eric Gordon	206	2016-17	HOU	60	30.3	16.3	2.6	2.7	0.6	0.5	1.6	5.5	13.6	40.7	9.1	37.6	1.8	2.1	82.8	1,820	976	155	160	38	32	96	110	+304
Jordan Clarkson	203	2020-21	UTA	67	26.4	18.3	4.0	2.4	0.9	0.1	1.7	6.7	15.6	42.6	8.7	34.8	1.9	2.1	89.6	1,771	1,224	269	164	60	10	113	107	+307
Davis Bertans	187	2019-20	WAS	50	28.6	15.4	4.3	1.7	0.7	0.6	1.1	4.9	11.0	44.3	8.6	43.7	1.9	2.2	83.8	1,431	768	216	85	33	30	53	128	0
Jordan Clarkson	186	2021-22	UTA	78	27.0	15.9	3.4	2.4	0.8	0.2	1.6	5.9	14.0	41.8	7.5	31.7	1.8	2.2	83.2	2,107	1,244	269	189	64	16	125	147	+388
Mirza Teletovic	179	2015-16	PHX	78	21.3	12.2	3.9	1.1	0.4	0.3	1.1	4.2	9.8	43.0	5.8	39.4	1.5	1.9	76.5	1,665	951	301	89	32	20	82	155	-155
Terrence Ross	177	2019-20	ORL	69	27.4	14.7	3.2	1.2	1.1	0.3	1.0	4.9	12.3	40.3	7.3	35.1	2.3	2.7	85.3	1,889	1,016	222	82	77	24	70	109	-72
Tim Hardaway Jr.	173	2023-24	DAL	67	26.1	13.4	3.0	1.7	0.5	0.1	0.8	4.7	11.7	39.9	7.4	35.1	1.5	1.8	83.9	1,746	898	204	117	32	6	54	88	+72
Kevin Love	173	2021-22	CLE	70	22.1	13.4	7.1	2.1	0.3	0.2	1.3	4.3	10.2	42.4	6.4	38.6	2.3	2.7	84.0	1,550	939	495	150	22	17	92	95	+106
Chuck Person	164	1994-95	SAS	80	24.9	10.6	3.2	1.3	0.6	0.2	1.3	3.9	9.2	41.9	5.4	38.0	0.8	1.3	65.0	1,994	845	254	104	44	12	100	197
Malik Beasley	163	2021-22	MIN	61	23.5	10.7	2.9	1.4	0.5	0.2	0.5	3.7	9.7	37.9	7.2	37.2	0.7	0.8	83.3	1,431	651	178	86	29	10	29	63	+47
Jamal Crawford	163	2009-10	ATL	79	31.1	18.0	2.5	3.0	0.8	0.2	1.7	6.3	14.0	44.9	5.4	38.2	3.4	4.0	85.7	2,460	1,425	201	238	61	12	137	132	+259
Terry Mills	162	1996-97	DET	74	24.7	10.5	4.7	1.3	0.5	0.4	1.1	3.8	8.7	43.4	5.2	42.0	0.7	0.9	81.3	1,829	776	348	94	34	27	78	152	+400
Lou Williams	161	2016-17	TOT	80	24.6	17.6	2.5	3.0	1.0	0.3	2.0	5.3	12.3	43.0	5.5	36.5	5.0	5.7	88.1	1,971	1,408	200	238	79	20	159	91	+60
Malik Beasley	159	2022-23	TOT	54	24.4	12.8	3.4	1.5	0.8	0.1	0.9	4.6	11.7	39.6	8.2	36.0	0.6	0.8	81.0	1,315	693	181	82	44	8	48	69	-73
Patty Mills	159	2020-21	SAS	67	24.8	10.9	1.7	2.3	0.6	0.0	1.0	3.7	9.0	41.4	6.3	37.7	1.1	1.2	91.0	1,661	728	116	157	42	3	64	80	+56
Kevin Martin	158	2012-13	OKC	77	27.7	14.0	2.3	1.4	0.9	0.1	1.3	4.5	10.1	45.0	4.8	42.6	2.8	3.2	89.0	2,136	1,077	178	106	72	8	101	138	+438
Vince Carter	158	2012-13	DAL	78	25.7	13.3	4.1	2.4	0.9	0.6	1.3	4.5	10.4	43.4	4.9	41.4	2.2	2.7	81.2	2,002	1,037	317	188	71	43	99	216	+266
JR Smith	158	2009-10	DEN	75	27.8	15.4	3.1	2.4	1.3	0.3	1.9	5.7	13.8	41.4	6.2	33.8	1.9	2.7	70.6	2,082	1,156	234	183	99	20	139	174	+254
Norman Powell	157	2023-24	LAC	73	25.9	13.8	2.5	1.1	0.6	0.3	0.8	4.9	10.0	48.8	5.0	42.8	1.9	2.3	82.5	1,892	1,008	186	78	41	22	62	130	+206
JR Smith	157	2007-08	DEN	74	19.2	12.3	2.1	1.7	0.8	0.2	1.5	4.2	9.1	46.1	5.3	40.3	1.7	2.4	71.9	1,421	907	152	128	62	12	112	144	+208
Kelly Oubre Jr.	156	2021-22	CHA	63	24.6	14.7	3.7	1.0	1.0	0.4	0.9	5.2	11.7	44.4	7.1	35.0	1.8	2.6	68.3	1,551	924	236	63	60	27	56	154	+28
Gerald Green	156	2018-19	HOU	73	20.2	9.2	2.5	0.5	0.5	0.4	0.8	3.2	7.9	40.0	6.0	35.4	0.8	0.9	83.8	1,473	675	182	40	33	27	55	126	+131
Buddy Hield	155	2021-22	SAC	49	27.5	14.0	4.1	1.9	0.8	0.2	1.6	4.7	12.2	38.3	8.8	36.1	1.5	1.7	88.2	1,349	688	199	91	38	12	78	96	-82