Derek Jeter has the most career strikeouts in the postseason, with 135 strikeouts.

Interpreted as:

most postseason strikeouts by a player in a career

	NAME	SO	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Derek Jeter D. Jeter	135	158	650	111	200	32	5	20	61	66	5	18	5	734	302	57	9	4	3	14	.308	.374	.465	.838
2	Jorge Posada J. Posada	109	125	416	53	103	23	1	11	42	70	3	3	3	492	161	35	0	3	9	15	.248	.358	.387	.745
3	Cody Bellinger C. Bellinger	92	76	270	33	57	9	3	10	37	27	0	14	1	298	102	22	0	1	4	1	.211	.282	.378	.660
4	Aaron Judge A. Judge	91	65	246	42	58	8	0	17	41	40	3	5	1	292	117	25	0	3	3	4	.236	.346	.476	.822
5	Manny Ramirez M. Ramirez	91	111	410	67	117	19	0	29	78	72	5	1	1	493	223	48	0	6	12	17	.285	.394	.544	.937
6	George Springer G. Springer	86	80	330	56	88	21	0	23	47	36	4	4	1	371	178	44	0	1	1	5	.267	.345	.539	.884
7	Max Muncy M. Muncy	85	74	238	44	52	8	0	15	36	62	4	4	0	304	105	23	0	0	3	4	.218	.388	.441	.829
8	Bernie Williams B. Williams	85	121	465	83	128	29	0	22	80	71	3	8	5	545	223	51	0	6	11	17	.275	.371	.480	.850
9	Carlos Correa C. Correa	84	85	323	38	91	19	0	18	63	31	4	1	0	358	164	37	0	0	2	8	.282	.352	.508	.860
10	Kyle Schwarber K. Schwarber	79	73	244	44	57	7	0	23	37	46	4	5	0	296	133	30	0	2	5	4	.234	.361	.545	.907
11	Corey Seager C. Seager	79	78	299	55	76	17	1	19	48	42	3	3	0	346	152	37	0	2	3	6	.254	.350	.508	.858
12	Reggie Sanders R. Sanders	79	64	221	24	43	8	0	7	25	26	2	9	1	251	72	15	0	2	4	8	.195	.283	.326	.609
13	David Justice D. Justice	79	112	398	55	89	17	2	14	63	64	5	3	2	471	152	33	0	4	7	7	.224	.335	.382	.717
14	Alex Rodriguez A. Rodriguez	77	76	278	43	72	16	0	13	41	39	9	8	3	330	127	29	1	3	4	6	.259	.365	.457	.822
15	Jayson Werth J. Werth	76	63	227	38	57	13	2	15	30	41	2	6	0	271	119	30	0	1	4	3	.251	.369	.524	.893
16	Jose Altuve J. Altuve	75	105	436	89	118	21	0	27	56	43	2	9	5	484	220	48	0	3	2	15	.271	.337	.505	.841
17	Jim Thome J. Thome	73	71	232	35	49	2	1	17	37	30	4	0	0	267	104	20	1	0	1	3	.211	.312	.448	.760
18	Chris Taylor C. Taylor	72	80	227	39	56	13	2	9	26	36	1	5	1	266	100	24	1	1	0	1	.247	.351	.441	.791
19	David Ortiz D. Ortiz	72	85	304	51	88	22	2	17	61	59	2	0	1	369	165	41	0	4	11	4	.289	.404	.543	.947
20	Jim Edmonds J. Edmonds	72	64	230	33	63	16	0	13	42	30	2	2	2	263	118	29	0	1	3	1	.274	.361	.513	.874
21	Tino Martinez T. Martinez	72	99	356	44	83	15	0	9	38	41	6	3	2	405	125	24	0	2	7	1	.233	.321	.351	.672
22	Mike Napoli M. Napoli	70	66	197	23	45	9	0	8	30	25	3	2	1	227	78	17	0	2	2	3	.228	.322	.396	.718
23	Reggie Jackson R. Jackson	70	77	281	41	78	14	1	18	48	33	3	5	2	318	148	33	0	1	3	5	.278	.358	.527	.885
24	Yordan Alvarez Y. Alvarez	69	60	214	39	63	13	3	12	41	31	5	0	0	252	118	28	0	2	5	1	.294	.393	.551	.944
25	Martín Maldonado M. Maldonado	69	65	177	17	30	5	0	3	13	13	7	0	0	202	44	8	4	1	0	5	.169	.253	.249	.501