David Ortiz had his most RBIs in a month in July 2006, with 35 RBIs.

	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	David Ortiz D. Ortiz	35	July 2006	26	109	26	37	6	1	14	16	1	27	1	0	126	87	21	0	0	4	2	.339	.429	.798	1.227
2	David Ortiz D. Ortiz	31	June 2004	25	104	18	38	8	0	10	4	0	14	0	0	110	76	18	0	2	0	1	.365	.382	.731	1.113
3	David Ortiz D. Ortiz	30	August 2005	26	102	25	29	8	0	11	19	0	23	0	0	122	70	19	0	1	2	3	.284	.393	.686	1.080
4	David Ortiz D. Ortiz	29	September 2005	29	103	19	33	3	0	11	21	0	22	0	0	127	69	14	0	3	2	2	.320	.425	.670	1.095
5	David Ortiz D. Ortiz	28	May 2016	24	98	14	34	12	1	9	12	0	17	0	0	111	75	22	0	1	4	4	.347	.414	.765	1.180
6	David Ortiz D. Ortiz	28	May 2006	26	98	15	25	6	0	5	12	1	20	0	0	114	46	11	0	3	3	1	.255	.333	.469	.803
7	David Ortiz D. Ortiz	27	May 2010	23	80	16	29	4	0	10	10	0	24	0	0	92	63	14	0	2	0	2	.363	.424	.788	1.211
8	David Ortiz D. Ortiz	27	September 2007	26	91	19	36	12	0	9	24	0	15	1	1	116	75	21	0	1	5	1	.396	.517	.824	1.341
9	David Ortiz D. Ortiz	27	June 2005	25	100	19	32	6	1	7	12	0	21	0	0	114	61	14	0	2	1	2	.320	.386	.610	.996
10	David Ortiz D. Ortiz	27	May 2004	29	120	11	31	11	0	6	12	0	34	0	0	133	60	17	0	1	0	2	.258	.323	.500	.823
11	David Ortiz D. Ortiz	26	August 2007	27	103	29	32	7	1	8	20	1	19	1	0	125	65	16	0	1	1	2	.311	.424	.631	1.055
12	David Ortiz D. Ortiz	25	September 2016	25	87	15	29	6	0	7	12	1	15	0	0	102	56	13	0	2	2	0	.333	.412	.644	1.055
13	David Ortiz D. Ortiz	25	September 2015	24	85	14	25	10	0	7	12	0	18	0	0	99	56	17	0	2	3	4	.294	.374	.659	1.033
14	David Ortiz D. Ortiz	25	July 2014	23	88	9	22	10	0	6	11	0	11	0	0	100	50	16	0	1	3	4	.250	.330	.568	.898
15	David Ortiz D. Ortiz	24	July 2009	25	89	13	22	5	0	7	7	1	22	0	0	98	48	12	0	1	1	0	.247	.306	.539	.845
16	David Ortiz D. Ortiz	24	August 2003	27	94	19	27	6	1	11	13	0	20	0	0	107	68	18	0	0	4	1	.287	.374	.723	1.097
17	David Ortiz D. Ortiz	23	September 2010	25	92	15	27	7	0	5	11	0	18	0	0	103	49	12	0	0	3	1	.293	.369	.533	.902
18	David Ortiz D. Ortiz	23	September 2008	23	86	16	21	9	1	6	10	0	13	0	0	97	50	16	1	0	3	0	.244	.323	.581	.904
19	David Ortiz D. Ortiz	23	September 2003	24	90	15	26	5	0	8	11	0	15	0	0	101	55	13	0	0	0	2	.289	.366	.611	.977
20	David Ortiz D. Ortiz	22	July 2016	23	88	14	24	4	0	7	11	0	11	0	0	101	49	11	0	2	1	5	.273	.347	.557	.903
21	David Ortiz D. Ortiz	22	August 2015	26	91	17	32	8	0	9	16	0	17	0	0	111	67	17	0	4	4	2	.352	.432	.736	1.169
22	David Ortiz D. Ortiz	22	July 2015	23	84	15	25	6	0	7	14	0	14	0	0	98	52	13	0	0	2	0	.298	.398	.619	1.017
23	David Ortiz D. Ortiz	22	June 2013	27	102	15	30	6	2	7	20	0	22	0	0	122	61	15	0	0	8	4	.294	.410	.598	1.008
24	David Ortiz D. Ortiz	22	June 2010	26	84	20	20	7	0	6	21	1	22	0	0	107	45	13	0	1	4	2	.238	.393	.536	.928
25	David Ortiz D. Ortiz	22	May 2008	28	107	19	34	8	0	8	18	0	18	0	0	127	66	16	0	2	3	2	.318	.409	.617	1.026