Derek Jeter has gotten the most career doubles in the postseason, with 32 doubles.

Interpreted as:

most 2b by a player in playoff history

	NAME	2B	G	AB	R	H	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Derek Jeter D. Jeter	32	158	650	111	200	5	20	61	66	5	135	18	5	734	302	57	9	4	3	14	.308	.374	.465	.838
2	Bernie Williams B. Williams	29	121	465	83	128	0	22	80	71	3	85	8	5	545	223	51	0	6	11	17	.275	.371	.480	.850
3	Jorge Posada J. Posada	23	125	416	53	103	1	11	42	70	3	109	3	3	492	161	35	0	3	9	15	.248	.358	.387	.745
4	Mookie Betts M. Betts	22	74	293	54	76	0	8	34	40	1	54	16	1	339	122	30	0	5	7	4	.259	.345	.416	.762
5	David Ortiz D. Ortiz	22	85	304	51	88	2	17	61	59	2	72	0	1	369	165	41	0	4	11	4	.289	.404	.543	.947
6	Jose Altuve J. Altuve	21	105	436	89	118	0	27	56	43	2	75	9	5	484	220	48	0	3	2	15	.271	.337	.505	.841
7	Carlos Correa C. Correa	19	85	323	38	91	0	18	63	31	4	84	1	0	358	164	37	0	0	2	8	.282	.352	.508	.860
8	Justin Turner J. Turner	19	86	315	43	85	1	13	42	38	13	59	5	0	368	145	33	0	2	1	6	.270	.370	.460	.830
9	Yadier Molina Y. Molina	19	104	373	29	102	0	4	36	27	3	44	1	1	406	133	23	1	2	6	13	.273	.326	.357	.682
10	Manny Ramirez M. Ramirez	19	111	410	67	117	0	29	78	72	5	91	1	1	493	223	48	0	6	12	17	.285	.394	.544	.937
11	Albert Pujols A. Pujols	18	88	304	57	97	1	19	54	50	5	46	1	2	360	174	38	0	1	20	7	.319	.422	.572	.995
12	Chipper Jones C. Jones	18	93	338	58	97	0	13	47	72	1	61	8	3	417	154	31	1	5	11	10	.287	.409	.456	.864
13	Alex Bregman A. Bregman	17	99	370	63	88	1	19	54	53	9	64	3	1	434	164	37	0	2	4	10	.238	.346	.443	.789
14	Corey Seager C. Seager	17	78	299	55	76	1	19	48	42	3	79	3	0	346	152	37	0	2	3	6	.254	.350	.508	.858
15	David Freese D. Freese	17	69	204	26	61	2	10	36	20	4	55	0	1	230	112	29	0	2	2	9	.299	.370	.549	.919
16	Ben Zobrist B. Zobrist	17	64	228	34	55	1	4	14	21	1	38	1	0	253	86	22	1	2	2	5	.241	.306	.377	.683
17	David Justice D. Justice	17	112	398	55	89	2	14	63	64	5	79	3	2	471	152	33	0	4	7	7	.224	.335	.382	.717
18	Paul O'Neill P. O'Neill	17	85	299	39	85	2	11	39	38	0	41	5	0	340	139	30	1	2	2	12	.284	.363	.465	.828
19	Jim Edmonds J. Edmonds	16	64	230	33	63	0	13	42	30	2	72	2	2	263	118	29	0	1	3	1	.274	.361	.513	.874
20	Alex Rodriguez A. Rodriguez	16	76	278	43	72	0	13	41	39	9	77	8	3	330	127	29	1	3	4	6	.259	.365	.457	.822
21	Roberto Alomar R. Alomar	16	58	230	32	72	1	4	33	27	0	32	20	2	263	102	21	3	3	3	9	.313	.381	.443	.824
22	Yuli Gurriel Y. Gurriel	15	92	348	35	91	1	8	39	28	2	36	5	0	380	132	24	0	2	5	7	.261	.318	.379	.698
23	George Springer G. Springer	15	67	276	43	74	0	19	38	31	2	74	4	1	309	146	34	0	0	1	4	.268	.346	.529	.875
24	Jhonny Peralta J. Peralta	15	58	211	18	54	0	8	26	15	1	45	2	0	229	93	23	1	1	0	9	.256	.307	.441	.748
25	Carlos Beltran C. Beltran	15	65	215	45	66	1	16	42	37	2	33	11	0	256	131	32	1	1	2	3	.307	.412	.609	1.021