19 players are tied for the most career hat tricks by an active defenseman, with 1 hat trick. The first three are Dylan Coghlan, Cale Makar and Jakob Chychrun.

Interpreted as:

most regular-season hat tricks by a active defenseman

	NAME	HT	GP	G	A	P	+/-	PIM	PPG	PPA	SHG	SHA	GWG	OTG	S	S%	FOW	FO	FOW%	HIT	BKS	TKA	GVA	TOI/GP
1	Dylan Coghlan D. Coghlan	1	112	6	16	22	-10	26	2	2	0	0	1	0	180	3.3	0	1	0.0	105	96	29	45	13:53
2	Cale Makar C. Makar	1	395	116	312	428	+136	110	41	138	3	4	24	6	1,118	10.4	0	0		341	547	295	304	24:47
3	Jakob Chychrun J. Chychrun	1	541	96	167	263	-52	360	33	43	0	0	16	3	1,298	7.4	0	0		628	822	192	434	21:16
4	Tony DeAngelo T. DeAngelo	1	406	52	177	229	-34	339	13	80	0	0	8	4	846	6.1	1	1	100.0	281	433	114	347	19:23
5	MacKenzie Weegar M. Weegar	1	550	59	192	251	+113	386	8	38	1	8	9	1	1,073	5.5	1	2	50.0	1,214	992	339	583	20:58
6	Zach Werenski Z. Werenski	1	567	113	271	384	+4	146	25	92	2	3	17	7	1,586	7.1	0	0		303	748	278	388	23:53
7	Brandon Montour B. Montour	1	601	84	209	293	+18	451	16	75	3	1	20	4	1,365	6.2	0	0		673	668	183	429	21:19
8	Erik Gustafsson E. Gustafsson	1	515	47	193	240	-15	163	7	66	0	0	6	2	786	6.0	0	1	0.0	454	504	155	391	18:31
9	Jaccob Slavin J. Slavin	1	745	55	244	299	+167	94	7	21	4	14	9	3	1,286	4.3	0	1	0.0	433	1,241	699	451	22:27
10	Hampus Lindholm H. Lindholm	1	761	73	239	312	+147	441	14	67	1	4	13	3	1,294	5.6	2	8	25.0	698	976	270	646	22:22
11	Rasmus Ristolainen R. Ristolainen	1	776	56	248	304	-179	383	15	105	1	4	8	5	1,455	3.8	1	2	50.0	1,900	1,254	192	425	22:39
12	Nikita Zadorov N. Zadorov	1	723	51	117	168	+37	836	2	7	0	3	5	1	877	5.8	1	1	100.0	1,986	773	208	477	18:22
13	Dougie Hamilton D. Hamilton	1	835	151	350	501	+76	524	47	116	1	2	33	9	2,395	6.3	1	4	25.0	974	924	255	676	20:36
14	Justin Faulk J. Faulk	1	980	130	328	458	-66	478	47	99	3	5	33	4	2,287	5.7	0	1	0.0	1,572	1,324	574	669	23:00
15	Cam Fowler C. Fowler	1	1,042	105	388	493	-110	269	40	142	4	5	19	5	1,635	6.4	2	3	66.7	481	1,422	346	651	23:08
16	Jared Spurgeon J. Spurgeon	1	933	117	299	416	+125	160	34	98	0	6	23	5	1,543	7.6	1	3	33.3	792	1,609	264	311	22:06
17	Erik Karlsson E. Karlsson	1	1,084	200	670	870	-123	486	44	261	2	5	38	12	2,974	6.7	0	4	0.0	780	1,427	851	1,283	25:14
18	Ryan Suter R. Suter	1	1,526	107	589	696	+127	785	36	218	5	12	20	2	2,425	4.4	2	5	40.0	1,201	2,043	548	754	24:05
19	Shea Weber S. Weber	1	1,038	224	365	589	+79	714	106	133	5	6	35	7	2,765	8.1	0	0		2,212	1,691	372	737	24:03