which defensemen has won the most norris trophies

Bobby Orr has won the most career Norris Trophies by a defenseman, with 8.

	NAME	NORRIS	GP	G	A	P	+/-	PIM	PPG	PPA	SHG	SHA	GWG	OTG	S	S%	FOW	FO	FOW%	HIT	BKS	TKA	GVA	TOI/GP
1	Bobby Orr B. Orr	8	657	270	645	915	+582	953	76	248	16	31	26		3,058	8.8
2	Nicklas Lidstrom N. Lidstrom	7	1,564	264	878	1,142	+450	514	132	458	10	30	35	4	3,875	6.8	0	0		477	990	462	638	26:56
3	Doug Harvey D. Harvey	7	1,113	88	452	540	+46	1,225	26	206	5	10	17		350	6.9
4	Ray Bourque R. Bourque	5	1,612	410	1,169	1,579	+527	1,141	173	588	16	28	60	5	6,209	6.6	0	1	0.0	277	203	143	135	26:38
5	Erik Karlsson E. Karlsson	3	1,032	191	645	836	-111	472	43	254	2	5	37	11	2,852	6.7	0	4	0.0	760	1,372	823	1,194	25:19
6	Chris Chelios C. Chelios	3	1,651	185	763	948	+351	2,891	69	338	13	39	31	1	3,627	5.1	1	5	20.0	569	615	286	550	20:55
7	Paul Coffey P. Coffey	3	1,409	396	1,135	1,531	+298	1,802	135	529	20	31	43	1	4,389	9.0	0	0		33	89	23	97	21:50
8	Denis Potvin D. Potvin	3	1,060	310	742	1,052	+456	1,356	127	332	10	22	44	0	3,050	10.2
9	Pierre Pilote P. Pilote	3	890	80	418	498	+187	1,257	35	134	2	9	17		791	7.7
10	Duncan Keith D. Keith	2	1,256	106	540	646	+159	675	30	156	5	15	19	3	2,526	4.2	0	1	0.0	684	2,010	650	1,002	24:41
11	Brian Leetch B. Leetch	2	1,205	247	781	1,028	+25	571	111	431	8	14	38	7	3,640	6.8	0	1	0.0	410	653	306	420	26:28
12	Rod Langway R. Langway	2	994	51	278	329	+276	851	9	33	3	10	9	0	1,237	4.1
13	Larry Robinson L. Robinson	2	1,384	208	750	958	+722	793	66	243	3	7	29	0	2,332	8.9
14	Adam Fox A. Fox	1	385	54	279	333	+111	158	10	132	3	6	18	3	722	7.5	0	1	0.0	178	605	326	289	23:04
15	Cale Makar C. Makar	1	345	95	277	372	+111	102	33	126	2	3	22	5	963	9.9	0	0		317	460	256	233	24:36
16	Quinn Hughes Q. Hughes	1	392	50	315	365	+37	165	11	151	0	3	6	3	821	6.1	0	0		108	297	220	288	24:10
17	Roman Josi R. Josi	1	938	188	521	709	+64	389	64	190	1	9	35	9	2,776	6.8	0	2	0.0	669	1,771	352	627	24:52
18	Victor Hedman V. Hedman	1	1,078	160	593	753	+179	752	32	239	1	13	29	8	2,305	6.9	1	3	33.3	1,145	1,660	537	842	23:28
19	P.K. Subban	1	834	115	352	467	+5	905	49	140	1	4	18	4	1,963	5.9	1	3	33.3	1,044	1,112	303	863	23:28
20	Drew Doughty D. Doughty	1	1,177	156	513	669	+60	769	80	217	2	7	33	8	2,443	6.4	1	3	33.3	1,999	1,573	289	1,105	26:13
21	Brent Burns B. Burns	1	1,266	230	589	819	-8	755	85	217	3	13	38	16	3,581	6.4	12	29	41.4	1,326	1,703	813	1,327	23:28
22	Mark Giordano M. Giordano	1	1,148	158	419	577	+129	918	52	141	13	12	26	8	2,346	6.7	0	0		1,245	2,164	540	731	22:03
23	Zdeno Chara Z. Chara	1	1,680	209	471	680	+301	2,085	93	133	8	27	35	3	3,419	6.1	13	36	36.1	3,749	2,164	610	1,342	23:55
24	Chris Pronger C. Pronger	1	1,167	157	541	698	+183	1,590	83	291	2	16	27	5	2,610	6.0	7	23	30.4	807	1,385	397	637	27:11
25	Scott Niedermayer S. Niedermayer	1	1,263	172	568	740	+167	784	90	245	1	16	39	13	2,436	7.1	7	26	26.9	565	674	566	617	25:25