Bill Russell has the most career appearances in the NBA Finals, with 12 appearances.

Interpreted as:

most NBA finals apperances by a player all-time

NAME	SERIES	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Bill Russell	NBA Finals	70	45.5	16.4	24.5				5.9	13.0	45.6				4.6	7.5	61.3	50.5				3,185	1,151	1,718					225
Sam Jones	NBA Finals	64	29.2	17.9	4.9				7.2	15.5	46.1				3.5	4.3	82.2	51.2				1,871	1,143	312					151
LeBron James	NBA Finals	55	42.5	28.4	10.2	7.8	1.7	0.8	10.7	22.1	48.4	1.8	5.2	35.2	5.2	7.1	73.1	56.3	1.9	8.3	3.9	2,337	1,562	561	430	93	46	217	130	-86
Kareem Abdul-Jabbar	NBA Finals	56	37.2	23.5	9.1	3.2	0.9	2.2	9.7	18.6	52.3	0.0	0.0	0.0	4.1	5.8	70.0	55.6	2.4	5.9	2.7	2,082	1,317	507	181	45	116	121	196
Magic Johnson	NBA Finals	50	40.9	19.4	7.9	11.7	2.0	0.3	6.8	13.1	51.6	0.2	0.8	23.7	5.7	6.5	87.4	60.7	1.8	6.2	3.8	2,044	971	397	584	102	16	190	147
Jerry West	NBA Finals	55	43.3	30.5	5.0	5.6			11.1	24.2	45.9				8.3	10.0	82.6	53.3				2,380	1,679	277	306				159
Tom Heinsohn	NBA Finals	52	30.8	19.9	9.1				7.8	19.5	40.1				4.3	5.7	74.2	45.1				1,602	1,035	473					209
Derek Fisher	NBA Finals	43	28.2	8.7	2.2	2.4	1.0	0.0	3.0	6.9	42.9	1.1	2.7	41.7	1.7	2.1	81.3	55.9	0.4	1.7	1.0	1,212	376	94	103	45	1	41	127	+110
Michael Cooper	NBA Finals	46	30.6	10.3	2.9	3.9	1.3	0.4	3.9	8.7	44.7	0.8	2.0	38.0	1.8	2.2	80.6	53.5	0.8	2.2	1.3	1,406	474	135	178	59	20	60	159
John Havlicek	NBA Finals	47	39.8	21.7	7.4	4.1	1.2	0.2	8.3	19.7	42.1				5.1	6.0	84.8	48.5	1.7	5.0		1,872	1,020	350	195	15	3		154
Tom Sanders	NBA Finals	43	26.2	10.5	6.4	1.2			4.3	9.3	46.1				1.9	2.6	73.5	50.3				1,126	453	277	50				179
K.C. Jones	NBA Finals	44	22.0	6.5	2.5				2.5	6.2	39.9				1.6	2.3	71.0	45.6				969	287	110					128
Frank Ramsey	NBA Finals	47	24.6	13.5	4.8				4.7	11.3	41.3				4.1	5.1	81.5	49.7				1,158	634	224					178
Andre Iguodala	NBA Finals	36	27.0	8.5	4.0	3.1	0.9	0.7	3.4	6.9	49.0	1.1	3.2	36.0	0.6	1.5	37.0	55.9	1.0	3.0	0.9	973	305	143	112	31	25	33	75	+70
Kobe Bryant	NBA Finals	37	42.7	25.3	5.7	5.1	1.8	0.9	9.0	21.8	41.2	1.3	4.1	31.4	6.0	7.1	84.8	50.7	1.1	4.6	3.3	1,581	937	211	187	65	33	123	118	+36
Robert Horry	NBA Finals	37	32.7	9.7	5.9	2.9	1.3	1.2	3.3	7.6	42.9	1.5	3.9	39.2	1.6	2.3	71.4	56.1	1.7	4.2	1.2	1,208	358	220	109	49	43	45	113	+116
Elgin Baylor	NBA Finals	44	42.0	26.4	13.5				10.0	23.5	42.7				6.3	8.3	75.5	48.6				1,850	1,161	593					140
Bob Cousy	NBA Finals	42	39.0	17.0	5.0	9.5			6.1	18.2	33.7				4.7	6.1	77.0	40.6				1,639	713	210	397				114
Stephen Curry	NBA Finals	34	39.0	27.3	5.8	6.0	1.6	0.3	8.8	20.4	43.2	4.5	11.3	39.5	5.2	5.6	91.7	59.6	1.0	4.7	3.5	1,327	928	196	204	55	11	120	96	+138
Draymond Green	NBA Finals	33	38.5	11.5	9.1	6.6	1.8	1.0	4.0	9.7	41.4	1.1	3.8	28.0	2.5	3.3	74.5	51.9	1.5	7.6	2.6	1,269	381	300	219	59	32	87	138	+140
Klay Thompson	NBA Finals	33	37.1	18.5	3.9	1.9	0.8	0.5	6.6	15.3	43.5	3.2	8.1	39.8	2.0	2.4	84.6	56.7	0.5	3.4	1.3	1,223	610	128	62	26	15	42	89	+59
James Jones	NBA Finals	25	8.4	2.0	0.8	0.2	0.2	0.1	0.6	1.6	38.5	0.4	1.2	37.9	0.3	0.4	72.7	55.9	0.0	0.8	0.3	209	49	20	4	5	2	7	32	-8
Udonis Haslem	NBA Finals	28	18.6	3.8	4.0	0.3	0.4	0.3	1.6	3.6	45.5	0.0	0.0		0.5	0.8	59.1	47.4	1.4	2.6	0.9	519	105	111	8	10	7	25	74	-85
Tim Duncan	NBA Finals	34	39.6	20.8	13.3	2.8	0.8	2.4	7.9	16.2	48.5	0.0	0.1	0.0	5.1	7.1	71.6	53.8	3.7	9.6	2.8	1,346	708	452	94	27	81	96	85	+157
Shaquille O'Neal	NBA Finals	30	42.3	28.8	13.1	3.4	0.5	2.1	11.3	18.8	60.2	0.0	0.0		6.2	12.7	48.4	59.0	4.0	9.1	3.4	1,268	865	393	103	16	62	101	109	+34