Barry Bonds has the most intentional walks in a month, with 23 intentional walks in September 2004 and in June 2004.

	NAME	IBB	MONTH	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	GIDP	AVG	OBP	SLG	OPS
1	Barry Bonds B. Bonds	23	September 2004	25	63	22	22	4	2	7	13	40	4	12	0	0	108	51	13	0	1	1	.349	.611	.810	1.421
2	Barry Bonds B. Bonds	23	June 2004	27	67	23	22	4	0	6	14	46	3	6	0	0	116	44	10	0	0	0	.328	.612	.657	1.269
3	Barry Bonds B. Bonds	21	July 2004	24	69	17	25	6	0	7	18	33	2	6	1	0	105	52	13	0	1	1	.362	.571	.754	1.325
4	Barry Bonds B. Bonds	18	May 2004	18	48	17	12	2	0	4	7	29	0	4	1	0	77	26	6	0	0	1	.250	.532	.542	1.074
5	Barry Bonds B. Bonds	18	April 2004	23	53	21	25	5	0	10	22	39	0	6	2	0	92	60	15	0	0	2	.472	.696	1.132	1.828
6	Barry Bonds B. Bonds	17	June 2002	26	70	19	26	4	1	7	17	40	1	8	1	0	111	53	12	0	0	1	.371	.604	.757	1.361
7	Ryan Howard R. Howard	16	September 2006	28	93	21	36	8	0	9	20	35	3	30	0	0	132	71	17	0	1	0	.387	.561	.763	1.324
8	Barry Bonds B. Bonds	15	August 2004	27	70	27	29	6	1	11	27	38	0	7	2	1	109	70	18	0	1	0	.414	.615	1.000	1.615
9	Barry Bonds B. Bonds	15	September 2002	25	69	20	25	4	0	6	22	43	2	7	3	0	114	47	10	0	0	1	.362	.614	.681	1.295
10	Garry Templeton G. Templeton	14	July 1985	25	80	9	25	6	1	0	8	16	0	11	1	2	97	33	7	0	1	1	.313	.423	.413	.835
11	Miguel Cabrera M. Cabrera	13	August 2010	29	97	21	29	6	0	7	16	28	1	12	1	0	127	56	13	0	1	4	.299	.457	.577	1.034
12	Ted Williams T. Williams	13	July 1957	28	84	21	37	9	1	9	21	28	1	9	0	0	114	75	19	0	1	2	.440	.579	.893	1.472
13	Albert Pujols A. Pujols	12	July 2009	26	97	21	28	5	1	4	15	20	1	9	1	0	118	47	10	0	0	6	.289	.415	.485	.900
14	Barry Bonds B. Bonds	12	April 2006	20	47	12	13	5	0	3	10	26	2	6	0	0	75	27	8	0	0	1	.277	.547	.574	1.121
15	Vladimir Guerrero V. Guerrero	12	August 2005	27	97	20	33	4	0	7	24	18	2	12	4	0	118	58	11	0	1	1	.340	.449	.598	1.047
16	Barry Bonds B. Bonds	12	June 2003	25	81	17	25	1	1	9	21	25	2	13	3	0	108	55	11	0	0	1	.309	.481	.679	1.160
17	Barry Bonds B. Bonds	12	April 2002	24	64	22	24	5	0	8	17	32	4	5	1	0	100	53	13	0	0	0	.375	.600	.828	1.428
18	Sammy Sosa S. Sosa	12	July 2001	26	87	21	24	7	1	9	24	23	0	28	0	0	113	60	17	0	3	1	.276	.416	.690	1.106
19	Will Clark W. Clark	12	July 1988	28	101	13	29	5	1	3	17	20	1	25	2	0	123	45	9	0	1	3	.287	.407	.446	.852
20	Willie Stargell W. Stargell	12	September 1973	31	108	31	36	10	1	8	25	26	0	19	0	0	135	72	19	0	1	2	.333	.459	.667	1.126
21	Willie McCovey W. McCovey	12	August 1969	26	78	18	28	2	2	9	28	31	1	4	0	0	111	61	13	0	1	4	.359	.541	.782	1.323
22	Duke Snider D. Snider	12	June 1956	29	95	22	25	2	0	9	14	27	0	19	1	0	123	54	11	1	0	3	.263	.426	.568	.995
23	José Ramírez J. Ramírez	11	September 2022	29	109	15	25	3	1	3	16	18	2	25	4	1	132	39	7	0	3	1	.229	.341	.358	.699
24	Juan Soto J. Soto	11	September 2020	23	64	18	21	8	0	2	12	28	0	15	5	1	92	35	10	0	0	0	.328	.533	.547	1.079
25	Albert Pujols A. Pujols	11	May 2010	29	103	16	30	7	0	5	20	26	0	12	2	1	130	52	12	0	1	5	.291	.431	.505	.936