The Seattle Mariners had the worst batting average by an AL team in 2021, with an average of .226.

	TEAM	AVG	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Mariners	.226	2021	162	.556	90	72	5,355	697	1,209	233	11	199	673	535	72	1,492	64	24	6,007	2,061	443	9	36	8	92	.303	.385	.688
2	Rangers	.232	2021	162	.370	60	102	5,405	625	1,254	225	24	167	598	433	58	1,381	106	29	5,943	2,028	416	16	31	10	113	.294	.375	.670
3	Yankees	.237	2021	162	.568	92	70	5,331	711	1,266	213	12	222	666	621	63	1,482	63	18	6,059	2,169	447	10	34	14	154	.322	.407	.729
4	Indians	.238	2021	162	.494	80	82	5,332	717	1,269	248	22	203	686	453	64	1,387	109	17	5,905	2,170	473	20	36	18	105	.303	.407	.710
5	Athletics	.238	2021	162	.531	86	76	5,395	743	1,284	271	19	199	698	545	98	1,349	88	20	6,104	2,190	489	17	49	17	99	.317	.406	.723
6	Orioles	.239	2021	162	.321	52	110	5,420	659	1,296	266	15	195	632	451	65	1,454	54	23	5,981	2,177	476	14	31	12	105	.304	.402	.705
7	Twins	.241	2021	162	.451	73	89	5,431	729	1,311	271	17	228	690	525	70	1,405	54	15	6,075	2,300	516	7	42	17	122	.314	.423	.738
8	Tigers	.242	2021	162	.475	77	85	5,376	697	1,299	236	37	179	675	490	44	1,514	88	25	5,977	2,146	452	17	50	8	113	.308	.399	.707
9	Rays	.243	2021	162	.617	100	62	5,507	857	1,336	288	36	222	810	585	72	1,542	88	42	6,211	2,362	546	6	41	27	75	.321	.429	.750
10	Angels	.245	2021	162	.475	77	85	5,437	723	1,331	265	23	190	691	464	59	1,394	79	26	6,015	2,212	478	30	25	35	107	.310	.407	.717
11	Royals	.249	2021	162	.457	74	88	5,427	686	1,349	251	29	163	647	421	55	1,258	124	33	5,986	2,147	443	31	52	8	100	.306	.396	.702
12	White Sox	.256	2021	162	.574	93	69	5,357	796	1,373	275	22	190	757	586	78	1,389	57	20	6,084	2,262	487	24	39	10	139	.336	.422	.758
13	Red Sox	.261	2021	162	.568	92	70	5,495	829	1,434	330	23	219	783	512	61	1,386	40	21	6,120	2,467	572	10	42	22	100	.328	.449	.777
14	Blue Jays	.266	2021	162	.562	91	71	5,476	846	1,455	285	13	262	816	496	51	1,218	81	20	6,068	2,552	560	10	35	14	112	.330	.466	.797
15	Astros	.267	2021	162	.586	95	67	5,593	863	1,496	299	14	221	834	569	64	1,222	53	16	6,289	2,486	534	9	54	25	136	.339	.444	.783