James Harden has the most turnovers in a playoff game with 12 turnovers in Game 5 of the 2015 Western Conference Finals against the Warriors.

Interpreted as:

most turnovers by a player in a playoffs game

	NAME	TOV	DATE	TM		OPP	MIN	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	PF	+/-
1	James Harden J. Harden	12	5/27/2015	HOU	@	GSW	43	14	6	5	3	0	2	11	18.2	0	3	0.0	10	13	76.9	41.9	2	4	5	-4
2	Luka Dončić L. Dončić	11	8/17/2020	DAL	@	LAC	38	42	7	9	3	0	13	21	61.9	2	6	33.3	14	15	93.3	76.1	0	7	4	-14
3	John Williamson J. Williamson	11	4/11/1979	NJN	@	PHI	46	38	4	3	1	0	14	28	50.0				10	12	83.3	57.1	2	2	4
4	Trae Young T. Young	10	4/19/2022	ATL	@	MIA	41	25	6	7	0	0	10	20	50.0	2	10	20.0	3	4	75.0	57.4	2	4	3	-11
5	James Harden J. Harden	10	4/29/2013	HOU	vs	OKC	35	15	1	3	5	1	4	12	33.3	0	4	0.0	7	8	87.5	48.3	0	1	5	+9
6	LeBron James L. James	10	5/6/2008	CLE	@	BOS	39	12	9	9	1	1	2	18	11.1	0	6	0.0	8	10	80.0	26.8	2	7	4	-7
7	LeBron James L. James	10	4/25/2006	CLE	vs	WAS	43	26	9	2	2	3	7	25	28.0	1	6	16.7	11	15	73.3	41.1	2	7	5	-2
8	Tim Duncan T. Duncan	10	5/7/2002	SAS	@	LAL	46	27	17	5	1	5	10	19	52.6	0	0		7	12	58.3	55.6	5	12	2	+1
9	Kevin Garnett K. Garnett	10	5/2/1998	MIN	@	SEA	43	7	4	3	1	2	3	11	27.3	0	0		1	2	50.0	29.5	1	3	2	-7
10	Anfernee Hardaway A. Hardaway	10	5/2/1994	ORL	@	IND	42	13	7	4	1	1	6	12	50.0	0	2	0.0	1	2	50.0	50.5	3	4	4
11	Kevin Johnson K. Johnson	10	5/23/1989	PHX	@	LAL	43	22	1	10	2	0	6	12	50.0	0	0		10	10	100.0	67.1	0	1	3
12	Moses Malone M. Malone	10	4/24/1984	PHI	@	NJN	42	22	15	1	0	3	10	22	45.5	0	0		2	2	100.0	48.1	2	13	5
13	Larry Bird L. Bird	10	4/7/1981	BOS	vs	CHI	44	12	12	9	4		5	13	38.5	0	0		2	2	100.0	43.2			4
14	Magic Johnson M. Johnson	10	5/14/1980	LAL	vs	PHI	39	14	15	10	3	0	4	13	30.8	0	0		6	7	85.7	43.5	5	10	5
15	Quinn Buckner Q. Buckner	10	4/14/1978	MIL	vs	PHX	28	1	5	10	2	0	0	2	0.0				1	3	33.3	15.1			5
16	Joel Embiid J. Embiid	9	4/30/2024	PHI	@	NYK	48	19	16	10	1	4	7	19	36.8	1	4	25.0	4	6	66.7	43.9	5	11	3	+14
17	Paolo Banchero P. Banchero	9	4/20/2024	ORL	@	CLE	41	24	7	5	0	0	9	17	52.9	2	7	28.6	4	8	50.0	58.5	1	6	3	-11
18	Trae Young T. Young	9	6/25/2021	ATL	@	MIL	28	15	2	3	2	0	6	16	37.5	1	8	12.5	2	3	66.7	43.3	0	2	0	-29
19	Donovan Mitchell D. Mitchell	9	9/1/2020	UTA	@	DEN	43	22	9	1	0	1	9	22	40.9	2	8	25.0	2	2	100.0	48.1	1	8	3	+3
20	Kevin Durant K. Durant	9	4/15/2019	GSW	vs	LAC	34	21	5	5	3	1	5	8	62.5	0	1	0.0	11	12	91.7	79.1	0	5	6	+2
21	James Harden J. Harden	9	5/26/2018	HOU	@	GSW	40	32	7	9	3	0	10	24	41.7	4	12	33.3	8	9	88.9	57.2	2	5	4	-19
22	James Harden J. Harden	9	5/9/2017	HOU	@	SAS	43	33	10	10	1	1	11	24	45.8	4	15	26.7	7	8	87.5	60.0	1	9	4	-6
23	Russell Westbrook R. Westbrook	9	4/16/2017	OKC	@	HOU	34	22	11	7	2	0	6	23	26.1	3	11	27.3	7	8	87.5	41.5	2	9	3	-25
24	James Harden J. Harden	9	5/4/2015	HOU	vs	LAC	37	20	5	12	4	0	6	13	46.2	3	6	50.0	5	6	83.3	63.9	0	5	4	-22
25	Dwyane Wade D. Wade	9	5/26/2011	MIA	@	CHI	38	21	6	2	2	0	6	13	46.2	1	2	50.0	8	11	72.7	58.9	2	4	4	0