Since 2005, Juan Soto has the most walks in a season, with 145 bases on balls in 2021.

Interpreted as:

most walks by a player in a season since 2005

	NAME	BB	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	wRC	WRAA	wOBA	wRC+	BRAA
1	Juan Soto J. Soto	145	2021	WSH	151	502	111	157	20	2	29	95	2	93	9	7	654	268	51	0	5	23	23	.313	.465	.534	.999	136	57.3	.420	164	53.2
2	Joey Votto J. Votto	143	2015	CIN	158	545	95	171	33	2	29	80	5	135	11	3	695	295	64	0	2	15	11	.314	.459	.541	1.000	141	63.1	.427	173	59.5
3	Juan Soto J. Soto	135	2022	TOT	153	524	93	127	25	2	27	62	4	96	6	2	663	237	54	0	0	6	12	.242	.401	.452	.853	111	34.8	.376	146	35.2
4	Joey Votto J. Votto	135	2013	CIN	162	581	101	177	30	3	24	73	4	138	6	3	726	285	57	0	6	19	15	.305	.435	.491	.926	129	49.1	.400	156	45.4
5	Joey Votto J. Votto	134	2017	CIN	162	559	106	179	34	1	36	100	8	83	5	1	707	323	71	0	6	20	16	.320	.454	.578	1.032	150	64	.428	163	57.6
6	Aaron Judge A. Judge	133	2024	NYY	158	559	122	180	36	1	58	144	9	171	10	0	703	392	95	0	2	20	22	.322	.458	.701	1.159	176	93.7	.476	219	95.5
7	Juan Soto J. Soto	132	2023	SDP	162	568	97	156	32	1	35	109	2	129	12	5	708	295	68	1	5	11	18	.275	.410	.519	.930	131	45	.395	154	47
8	Jose Bautista J. Bautista	132	2011	TOR	149	513	105	155	24	2	43	103	6	111	9	5	655	312	69	0	4	24	8	.302	.447	.608	1.056	139	65.6	.443	181	61.5
9	Barry Bonds B. Bonds	132	2007	SFG	126	340	75	94	14	0	28	66	3	54	5	0	477	192	42	0	2	43	13	.276	.480	.565	1.045	98	38.7	.428	158	35.8
10	Bryce Harper B. Harper	130	2018	WSH	159	550	103	137	34	0	34	100	6	169	13	3	695	273	68	0	9	16	7	.249	.393	.496	.889	116	34.6	.376	135	29.3
11	Juan Soto J. Soto	129	2024	NYY	157	576	128	166	31	4	41	109	4	119	7	4	713	328	76	0	4	2	10	.288	.419	.569	.989	147	63.4	.421	180	65.2
12	Juan Soto J. Soto	127	2025	NYM	160	577	120	152	20	1	43	105	3	137	38	4	714	303	64	1	6	13	17	.263	.396	.525	.921	129	44.5	.390	156	47.6
13	Aaron Judge A. Judge	127	2017	NYY	155	542	128	154	24	3	52	114	5	208	9	4	678	340	79	0	4	11	15	.284	.422	.627	1.049	145	62.5	.430	174	61.5
14	Kyle Schwarber K. Schwarber	126	2023	PHI	160	585	108	115	19	1	47	104	6	215	0	2	720	277	67	0	3	5	4	.197	.343	.474	.817	107	19	.350	120	17.5
15	Aaron Judge A. Judge	124	2025	NYY	152	541	137	179	30	2	53	114	7	160	12	5	679	372	85	0	7	36	16	.331	.457	.688	1.144	163	82.5	.463	203	82.7
16	Bryce Harper B. Harper	124	2015	WSH	153	521	118	172	38	1	42	99	5	131	6	4	654	338	81	0	4	15	15	.330	.460	.649	1.109	151	77.3	.461	197	73.9
17	Bobby Abreu B. Abreu	124	2006	TOT	156	548	98	163	41	2	15	107	3	138	30	6	686	253	58	2	9	6	13	.297	.424	.462	.886	119	32.8	.388	132	28.5
18	Mike Trout M. Trout	122	2018	LAA	140	471	101	147	24	4	39	79	10	124	24	2	607	296	67	0	4	25	5	.312	.460	.628	1.088	136	65.3	.447	189	64.4
19	Adam Dunn A. Dunn	122	2008	TOT	158	517	79	122	23	0	40	100	7	164	2	1	651	265	63	0	5	13	7	.236	.386	.513	.898	108	30.1	.384	129	23.9
20	Alex Bregman A. Bregman	119	2019	HOU	156	554	122	164	37	2	41	112	9	83	5	1	690	328	80	0	8	2	9	.296	.423	.592	1.015	146	58.7	.418	167	59.1
21	Adrian Gonzalez A. Gonzalez	119	2009	SDP	160	552	90	153	27	2	40	99	5	109	1	1	681	304	69	1	4	22	23	.277	.407	.551	.958	124	42.1	.404	156	47.3
22	David Ortiz D. Ortiz	119	2006	BOS	151	558	115	160	29	2	54	137	4	117	1	0	686	355	85	0	5	23	12	.287	.413	.636	1.049	142	56	.427	157	50.9
23	Brian Giles B. Giles	119	2005	SDP	158	545	92	164	38	8	15	83	2	64	13	5	674	263	61	0	8	9	14	.301	.423	.483	.905	118	37.1	.392	147	39.7
24	Paul Goldschmidt P. Goldschmidt	118	2015	ARI	159	567	103	182	38	2	33	110	2	151	21	5	694	323	73	0	7	29	16	.321	.435	.570	1.005	136	57.9	.418	163	51.1
25	Bobby Abreu B. Abreu	117	2005	PHI	162	588	104	168	37	1	24	102	6	134	31	9	719	279	62	0	8	15	7	.286	.405	.474	.879	118	31.6	.379	128	25.7