Barcelona scored their most hat tricks in LaLiga in a season in 2015-16, with 9 hat tricks.

barca most hattricks in a season

	CLUB	HT	SEASON	M	W	D	L	G	GC	SH	SOT	PASS-ATT	PASS	FOUL	YC	RC
1	Barcelona	9	2015-16	508	395	50	63	109	319	605	266	24,209	21,012	383	67	1
2	Barcelona	8	2011-12	532	392	98	43	111	319						82	5
3	Barcelona	7	2014-15	525	415	55	55	108	230	624	272	25,727	22,689	369	69	3
4	Barcelona	6	2017-18	529	389	126	14	96	317	580	272	24,250	21,165	383	67	2
5	Barcelona	6	2013-14	525	377	82	66	96	352						73	1
6	Barcelona	6	1993-94	493	326	77	91	91	462						87	11
7	Barcelona	6	1951-52	330	209	55	66	89	473						0	2
8	Barcelona	5	1943-44	286	110	88	88	58	506						0	2
9	Barcelona	5	1930-31	199	77	77	45	40	473						0	0
10	Barcelona	4	2018-19	530	363	125	42	88	393	560	253	25,308	22,340	410	77	2
11	Barcelona	4	2009-10	519	459	84	16	95	264						78	5
12	Barcelona	4	1996-97	580	402	85	114	98	528						103	6
13	Barcelona	4	1978-79	410	199	75	147	68	407						33	2
14	Barcelona	4	1963-64	330	209	44	77	74	418						0	0
15	Barcelona	4	1961-62	331	198	44	89	79	506						0	3
16	Barcelona	4	1959-60	332	243	23	66	85	308						0	1
17	Barcelona	4	1956-57	330	176	77	77	68	407						0	1
18	Barcelona	4	1954-55	330	187	77	66	74	429						0	1
19	Barcelona	4	1949-50	287	143	33	111	66	517						0	1
20	Barcelona	4	1942-43	286	154	44	88	75	550						0	1
21	Barcelona	3	2019-20	541	358	97	86	84	417	494	223	26,904	23,903	416	92	6
22	Barcelona	3	2012-13	529	453	56	27	112	440						60	3
23	Barcelona	3	2008-09	523	380	83	69	102	385						77	6
24	Barcelona	3	2007-08	526	279	147	127	76	473						85	5
25	Barcelona	3	2002-03	517	210	150	167	61	517						91	8