Russell Westbrook has the most three-point attempts in a playoff game, with 19 attempts in Game 6 of the 2018 First Round against the Jazz.

Interpreted as:

most 3pa by a player in a playoff game

	NAME	3PA	DATE	TM		OPP	MIN	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Russell Westbrook R. Westbrook	19	4/27/2018	OKC	@	UTA	44	46	10	5	2	0	18	43	41.9	7	36.8	3	6	50.0	50.4	1	9	5	3	-1
2	Jalen Green J. Green	18	4/23/2025	HOU	vs	GSW	35	38	4	6	3	0	13	25	52.0	8	44.4	4	5	80.0	69.9	0	4	2	1	+19
3	Stephen Curry S. Curry	18	4/30/2023	GSW	@	SAC	38	50	8	6	1	0	20	38	52.6	7	38.9	3	5	60.0	62.2	1	7	1	2	+25
4	Grant Williams G. Williams	18	5/15/2022	BOS	vs	MIL	39	27	6	0	0	2	10	22	45.5	7	38.9	0	0		61.4	1	5	1	5	+25
5	Damian Lillard D. Lillard	18	4/23/2019	POR	vs	OKC	45	50	7	6	3	1	17	33	51.5	10	55.6	6	8	75.0	68.5	2	5	6	2	+9
6	Russell Westbrook R. Westbrook	18	4/25/2017	OKC	@	HOU	42	47	11	9	0	0	15	34	44.1	5	27.8	12	17	70.6	56.7	5	6	7	5	+12
7	Klay Thompson K. Thompson	18	5/28/2016	GSW	@	OKC	40	41	4	0	1	1	14	31	45.2	11	61.1	2	2	100.0	64.3	1	3	1	4	+16
8	Damian Lillard D. Lillard	18	5/9/2016	POR	vs	GSW	47	36	6	10	0	1	9	30	30.0	5	27.8	13	16	81.3	48.6	2	4	3	3	-7
9	Stephen Curry S. Curry	18	4/23/2015	GSW	@	NOP	44	40	5	9	0	0	10	29	34.5	7	38.9	13	14	92.9	56.9	1	4	3	3	+13
10	Ray Allen R. Allen	18	4/30/2009	BOS	@	CHI	59	51	5	3	3	0	18	32	56.3	9	50.0	6	7	85.7	72.7	2	3	3	1	+1
11	Gary Trent Jr. G. Trent Jr.	17	4/29/2025	MIL	@	IND	48	33	5	2	5	0	12	25	48.0	8	47.1	1	2	50.0	63.8	1	4	2	4	-8
12	Stephen Curry S. Curry	17	5/13/2022	GSW	vs	MEM	40	29	7	5	1	2	10	27	37.0	6	35.3	3	4	75.0	50.4	0	7	3	3	+16
13	Bojan Bogdanović B. Bogdanović	17	6/16/2021	UTA	vs	LAC	39	32	3	0	0	0	10	20	50.0	9	52.9	3	4	75.0	73.5	0	3	3	4	-6
14	Damian Lillard D. Lillard	17	6/1/2021	POR	@	DEN	52	55	6	10	1	3	17	24	70.8	12	70.6	9	10	90.0	96.8	1	5	1	0	+2
15	James Harden J. Harden	17	5/6/2019	HOU	vs	GSW	40	38	10	4	0	2	13	29	44.8	6	35.3	6	8	75.0	58.4	1	9	2	4	+7
16	Stephen Curry S. Curry	17	6/3/2018	GSW	vs	CLE	38	33	7	8	1	0	11	26	42.3	9	52.9	2	2	100.0	61.4	1	6	5	3	+19
17	Rex Chapman R. Chapman	17	4/25/1997	PHX	@	SEA	41	42	4	2	0	0	12	22	54.5	9	52.9	9	12	75.0	77.0	1	3	2	1	+5
18	Jayson Tatum J. Tatum	16	5/12/2025	BOS	@	NYK	40	42	8	4	4	2	16	28	57.1	7	43.8	3	3	100.0	71.6	0	8	4	3	-9
19	Derrick White D. White	16	5/5/2025	BOS	vs	NYK	44	19	11	2	0	2	6	18	33.3	5	31.3	2	2	100.0	50.3	1	10	2	2	0
20	Stephen Curry S. Curry	16	5/2/2025	GSW	vs	HOU	42	29	7	2	2	1	9	23	39.1	6	37.5	5	6	83.3	56.6	1	6	5	4	-11
21	Tyrese Haliburton T. Haliburton	16	5/10/2024	IND	vs	NYK	38	35	4	7	2	1	14	26	53.8	6	37.5	1	1	100.0	66.2	0	4	2	1	+16
22	Klay Thompson K. Thompson	16	5/2/2023	GSW	vs	LAL	37	25	3	4	0	0	9	25	36.0	6	37.5	1	2	50.0	48.3	0	3	0	3	+1
23	Donovan Mitchell D. Mitchell	16	4/15/2023	CLE	vs	NYK	44	38	5	8	3	1	14	30	46.7	6	37.5	4	6	66.7	58.2	1	4	2	1	+2
24	Klay Thompson K. Thompson	16	5/26/2022	GSW	vs	DAL	37	32	2	3	1	0	12	25	48.0	8	50.0	0	0		64.0	1	1	1	3	+18
25	Fred VanVleet F. VanVleet	16	4/18/2022	TOR	@	PHI	44	20	4	7	3	2	7	23	30.4	5	31.3	1	2	50.0	41.9	0	4	4	1	-17