Since 1970, Ryan Howard has the most RBIs in a month, with 41 RBIs in August 2006.

Interpreted as:

most rbis by a player in a month since 1970

	NAME	RBI	MONTH	G	AB	R	H	2B	3B	HR	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Ryan Howard R. Howard	41	August 2006	29	112	25	39	3	0	14	22	3	33	0	0	138	84	17	0	1	10	1	.348	.464	.750	1.214
2	Troy Tulowitzki T. Tulowitzki	40	September 2010	28	115	30	37	6	2	15	9	1	19	2	0	125	92	23	0	0	1	3	.322	.376	.800	1.176
3	Ryan Klesko R. Klesko	40	May 2001	27	99	27	35	8	1	11	23	0	14	10	0	125	78	20	0	3	1	2	.354	.464	.788	1.252
4	Sammy Sosa S. Sosa	40	June 1998	27	114	25	34	2	0	20	6	0	27	0	2	121	96	22	0	1	0	3	.298	.331	.842	1.173
5	Jim Thome J. Thome	39	July 2001	28	97	22	37	5	0	12	25	2	37	0	0	124	78	17	0	0	3	0	.381	.516	.804	1.320
6	Rafael Palmeiro R. Palmeiro	39	August 1999	30	110	25	35	4	1	15	14	0	17	0	0	128	86	20	0	4	1	1	.318	.383	.782	1.165
7	Dante Bichette D. Bichette	39	June 1996	29	128	28	48	12	0	11	5	0	20	7	0	134	93	23	0	1	0	2	.375	.396	.727	1.122
8	Cecil Cooper C. Cooper	39	July 1983	27	112	26	41	7	1	10	7	0	17	0	0	123	80	18	0	4	2	3	.366	.390	.714	1.105
9	Ken Caminiti K. Caminiti	38	August 1996	28	96	24	33	4	1	14	17	0	20	3	1	117	81	19	0	4	4	1	.344	.427	.844	1.271
10	Juan Gonzalez J. Gonzalez	38	July 1996	27	108	22	44	10	0	15	14	0	15	0	0	123	99	25	0	1	7	2	.407	.472	.917	1.388
11	George Foster G. Foster	38	June 1977	28	114	30	38	8	0	9	10	2	18	1	0	127	73	17	0	1	1	4	.333	.394	.640	1.034
12	Aaron Judge A. Judge	37	June 2024	25	88	25	36	5	1	11	16	3	26	3	0	107	76	17	0	0	2	2	.409	.514	.864	1.378
13	Giancarlo Stanton G. Stanton	37	August 2017	29	109	28	38	6	0	18	14	3	31	1	0	127	98	24	0	1	4	2	.349	.433	.899	1.332
14	Albert Belle A. Belle	37	June 2000	27	107	18	39	4	0	12	12	0	14	0	1	120	79	16	0	1	3	4	.364	.425	.738	1.163
15	Don Mattingly D. Mattingly	37	September 1985	28	117	24	38	9	0	11	9	0	7	0	0	128	80	20	0	2	5	1	.325	.367	.684	1.051
16	J.D. Martinez	36	September 2017	24	99	26	40	8	0	16	7	0	29	1	0	107	96	24	0	1	1	7	.404	.439	.970	1.409
17	Nolan Arenado N. Arenado	36	August 2016	28	104	27	37	4	1	10	18	0	14	0	0	127	73	15	0	5	2	5	.356	.433	.702	1.135
18	Sammy Sosa S. Sosa	36	August 2001	29	109	31	42	3	3	17	16	3	24	0	1	130	102	23	0	2	3	0	.385	.469	.936	1.405
19	Jeff Bagwell J. Bagwell	36	July 2001	28	111	22	37	9	1	9	9	0	26	1	1	121	75	19	0	1	1	6	.333	.380	.676	1.056
20	Todd Helton T. Helton	36	May 2001	29	108	27	40	14	0	9	25	0	17	1	1	134	81	23	0	1	2	2	.370	.485	.750	1.235
21	Eric Davis E. Davis	36	May 1987	22	82	23	27	6	0	12	11	0	21	11	0	94	69	18	0	1	2	1	.329	.404	.841	1.246
22	Willie Stargell W. Stargell	36	June 1971	29	105	24	35	11	0	11	19	2	34	0	0	127	79	22	0	1	3	1	.333	.441	.752	1.193
23	Johnny Bench J. Bench	36	July 1970	30	107	18	32	5	0	11	12	0	16	1	0	122	70	16	0	3	2	2	.299	.361	.654	1.015
24	Ron Santo R. Santo	36	July 1970	31	113	21	36	10	1	7	20	0	27	2	0	133	69	18	0	0	2	7	.319	.421	.611	1.032
25	Manny Machado M. Machado	35	August 2017	29	126	23	43	6	1	12	3	0	11	3	1	132	87	19	0	3	1	4	.341	.348	.690	1.039