Javier Báez has the most strikeouts in a month, with 49 strikeouts in August 2014.

	NAME	SO	MONTH	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Javier Báez J. Báez	49	August 2014	27	112	14	21	4	0	7	15	4	0	2	0	116	46	11	0	0	0	3	.188	.216	.411	.626
2	Joey Gallo J. Gallo	48	August 2021	28	96	17	15	6	0	5	11	23	0	0	0	119	36	11	0	0	1	3	.156	.319	.375	.694
3	Adam Dunn A. Dunn	48	May 2012	29	100	20	23	3	0	11	21	26	0	0	1	127	59	14	0	1	0	1	.230	.386	.590	.976
4	Chris Davis C. Davis	47	August 2015	29	105	20	27	4	0	10	22	16	1	2	1	122	61	14	0	0	0	1	.257	.361	.581	.942
5	Joey Gallo J. Gallo	46	May 2018	27	98	16	20	6	0	7	14	9	1	1	0	108	47	13	0	0	1	0	.204	.278	.480	.757
6	Chris Davis C. Davis	46	May 2017	27	99	16	22	2	1	8	16	15	0	0	0	116	50	11	0	2	1	1	.222	.319	.505	.824
7	Javier Báez J. Báez	46	September 2014	25	101	11	15	2	0	2	5	11	1	3	1	113	23	4	0	0	0	2	.149	.239	.228	.467
8	Mark Reynolds M. Reynolds	46	May 2009	28	107	21	29	7	0	8	18	16	1	8	2	124	60	15	0	0	0	2	.271	.371	.561	.932
9	Ryan Noda R. Noda	45	September 2023	27	94	15	20	4	0	4	12	12	2	0	0	109	36	8	0	1	0	2	.213	.312	.383	.695
10	Patrick Wisdom P. Wisdom	45	August 2021	26	93	15	21	3	0	9	21	7	0	0	0	100	51	12	0	0	0	2	.226	.280	.548	.828
11	Michael Chavis M. Chavis	45	June 2019	27	108	15	28	4	1	4	17	7	0	0	0	115	46	9	0	0	0	3	.259	.304	.426	.730
12	Yoán Moncada Y. Moncada	45	June 2018	29	117	12	23	5	2	3	15	6	1	3	1	124	41	10	0	0	0	1	.197	.242	.350	.592
13	Joey Gallo J. Gallo	45	May 2017	28	94	20	19	3	0	9	17	11	1	0	0	106	49	12	0	0	0	0	.202	.292	.521	.814
14	Ryan Howard R. Howard	45	August 2012	28	106	13	27	5	0	6	25	10	0	0	0	118	50	11	0	2	3	0	.255	.314	.472	.785
15	Jack Cust J. Cust	45	July 2008	24	83	12	17	2	0	6	10	17	0	0	0	100	37	8	0	0	0	0	.205	.340	.446	.786
16	Jared Sandberg J. Sandberg	45	August 2002	27	109	19	25	8	0	5	14	13	0	1	1	122	48	13	0	0	3	2	.229	.311	.440	.752
17	Elly De La Cruz E. De La Cruz	44	September 2024	25	98	15	23	6	2	3	15	10	0	6	3	108	42	11	0	0	0	1	.235	.306	.429	.734
18	Logan O'Hoppe L. O'Hoppe	44	August 2024	25	91	5	9	1	0	2	6	7	0	0	0	98	16	3	0	0	0	0	.099	.163	.176	.339
19	Elly De La Cruz E. De La Cruz	44	August 2023	26	106	17	21	3	3	4	14	10	0	6	2	116	42	10	0	0	1	0	.198	.267	.396	.663
20	Yoán Moncada Y. Moncada	44	May 2019	30	118	13	30	5	1	4	15	7	1	3	1	128	49	10	1	1	0	1	.254	.299	.415	.714
21	Yoán Moncada Y. Moncada	44	April 2018	24	95	15	26	6	1	5	11	13	0	4	0	109	49	12	1	0	0	0	.274	.361	.516	.877
22	Chris Carter C. Carter	44	April 2013	25	93	15	22	2	1	6	14	11	0	0	0	105	44	9	0	1	0	0	.237	.314	.473	.787
23	Mark Reynolds M. Reynolds	44	August 2011	28	106	17	26	4	1	8	17	5	1	0	2	112	56	13	0	0	0	3	.245	.286	.528	.814
24	Mark Reynolds M. Reynolds	44	May 2010	28	103	15	22	7	0	5	18	13	1	2	1	118	44	12	0	1	1	0	.214	.305	.427	.732
25	Carlos Pena C. Pena	44	September 2005	27	95	11	23	2	0	7	13	5	1	0	0	101	46	9	0	0	0	1	.242	.287	.484	.771