Ryan Mountcastle hit the most homers by a rookie in 2021, with 33 home runs.

	NAME	HR	SEASON	TM	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ryan Mountcastle R. Mountcastle	33	2021	BAL	144	534	77	136	23	1	89	41	4	161	4	3	586	260	57	0	7	2	12	.255	.309	.487	.796	81	10	.335	111	7.8
2	Adolis García A. García	31	2021	TEX	149	581	77	141	26	2	90	32	5	194	16	5	622	264	59	0	4	0	15	.243	.286	.454	.741	75	-0.1	.314	97	-2.5
3	Patrick Wisdom P. Wisdom	28	2021	CHC	106	338	54	78	13	0	61	32	4	153	4	1	374	175	41	0	0	1	7	.231	.305	.518	.823	55	9.9	.346	117	8
4	Bobby Dalbec B. Dalbec	25	2021	BOS	133	417	50	100	21	5	78	28	7	156	2	0	453	206	51	0	1	1	3	.240	.298	.494	.792	62	7.3	.334	106	3.3
5	Eric Haase E. Haase	22	2021	DET	98	351	48	81	12	1	61	26	2	119	2	0	381	161	35	0	2	0	11	.231	.286	.459	.745	47	0.6	.316	100	0
6	Jonathan India J. India	21	2021	CIN	150	532	98	143	34	2	69	71	23	141	12	3	631	244	57	1	4	1	13	.269	.376	.459	.835	102	25.2	.363	122	17.4
7	Seth Brown S. Brown	20	2021	OAK	111	281	43	60	13	1	48	23	1	89	4	1	307	135	34	0	2	2	1	.214	.274	.480	.754	37	0	.315	104	1.5
8	Randy Arozarena R. Arozarena	20	2021	TBR	141	529	94	145	32	3	69	56	14	170	20	10	604	243	55	0	5	4	9	.274	.356	.459	.815	91	17.6	.350	128	20.4
9	LaMonte Wade Jr. L. Wade Jr.	18	2021	SFG	109	336	52	85	17	3	56	33	5	89	6	1	381	162	38	4	3	1	3	.253	.326	.482	.808	55	9	.343	117	8.5
10	Dylan Carlson D. Carlson	18	2021	STL	149	542	79	144	31	4	65	57	11	152	2	1	619	237	53	1	8	2	5	.266	.343	.437	.780	86	11	.336	112	9.3
11	Jazz Chisholm Jr. J. Chisholm Jr.	18	2021	MIA	124	464	70	115	20	4	53	34	4	145	23	8	507	197	42	2	3	0	3	.248	.303	.425	.728	61	-0.8	.312	94	-4
12	Bobby Bradley B. Bradley	16	2021	CLE	74	245	36	51	10	0	41	25	6	99	0	0	279	109	26	0	3	1	3	.208	.294	.445	.739	34	0	.314	101	0.3
13	Brendan Rodgers B. Rodgers	15	2021	COL	102	387	49	110	21	3	51	19	7	84	0	0	415	182	39	0	2	0	8	.284	.328	.470	.798	59	9.1	.341	98	-1
14	Andrew Vaughn A. Vaughn	15	2021	CWS	127	417	56	98	22	0	48	41	6	101	1	1	469	165	37	0	5	0	14	.235	.309	.396	.705	54	-3.1	.306	92	-4.3
15	Frank Schwindel F. Schwindel	14	2021	TOT	64	242	44	79	20	1	43	16	1	41	2	1	259	143	35	0	0	2	4	.326	.371	.591	.962	50	19	.403	154	17.9
16	Chas McCormick C. McCormick	14	2021	HOU	108	284	47	73	12	0	50	25	4	104	4	2	320	127	26	0	7	0	5	.257	.319	.447	.766	42	3.2	.327	108	3.1
17	Jarred Kelenic J. Kelenic	14	2021	SEA	93	337	41	61	13	1	43	36	3	106	6	4	377	118	28	0	1	0	5	.181	.265	.350	.615	32	-13.8	.270	73	-12.5
18	Ryan Jeffers R. Jeffers	14	2021	MIN	85	267	28	53	10	1	35	22	4	108	0	1	293	107	25	0	0	0	6	.199	.270	.401	.670	29	-6.1	.289	83	-6.1
19	Jesús Sánchez J. Sánchez	14	2021	MIA	64	227	27	57	8	2	36	20	3	78	0	1	251	111	24	0	1	3	2	.251	.319	.489	.808	36	5.1	.339	111	3.6
20	DJ Peters	13	2021	TOT	70	223	29	44	9	1	38	12	2	82	2	0	240	94	23	0	3	4	4	.197	.242	.422	.663	21	-8.3	.272	69	-9.1
21	Akil Baddoo A. Baddoo	13	2021	DET	124	413	60	107	20	7	55	45	0	122	18	4	461	180	40	0	3	1	5	.259	.330	.436	.766	61	5.5	.329	109	4.8
22	Tyrone Taylor T. Taylor	12	2021	MIL	93	243	33	60	9	3	43	20	7	59	6	1	271	111	24	0	1	1	6	.247	.321	.457	.778	37	4.1	.333	107	2.4
23	Gavin Sheets G. Sheets	11	2021	CWS	54	160	23	40	8	0	34	16	2	40	0	0	179	81	19	0	1	0	4	.250	.324	.506	.830	27	5.5	.352	123	5.1
24	Pavin Smith P. Smith	11	2021	ARI	145	498	68	133	27	4	49	42	4	106	1	0	545	201	42	0	1	1	11	.267	.328	.404	.732	68	1.7	.318	98	-1.7
25	Daulton Varsho D. Varsho	11	2021	ARI	95	284	41	70	17	2	38	30	0	67	6	0	315	124	30	1	0	3	4	.246	.318	.437	.755	40	2	.322	100	0