The 2022-23 defensemen for the Bruins included Jack Ahcan, Victor Berglund, Michael Callahan, Brandon Carlo and Connor Carrick.

	NO.	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	54	Jack Ahcan J. Ahcan	D	5'8"	185	5/18/1997	25	Savage, MN
2	64	Victor Berglund V. Berglund	D	6'0"	165	8/2/1999	23	Ornskoldsvik, Sweden
3	79	Michael Callahan M. Callahan	D	6'2"	197	9/23/1999	23	Franklin, MA
4	25	Brandon Carlo B. Carlo	D	6'6"	218	11/26/1996	26	Colorado Springs, CO
5	58	Connor Carrick C. Carrick	D	5'11"	192	4/13/1994	28	Orland Park, IL
6	75	Connor Clifton C. Clifton	D	5'11"	190	4/28/1995	27	Matawan, NJ
7	28	Derek Forbort D. Forbort	D	6'4"	208	3/4/1992	30	Duluth, MN
8	48	Matt Grzelcyk M. Grzelcyk	D	5'10"	176	1/5/1994	29	Charlestown, MA
9		Kristian Kostadinski K. Kostadinski	D	6'5"	213	5/20/2005	17	Gothenburg, Sweden
10	27	Hampus Lindholm H. Lindholm	D	6'4"	215	1/20/1994	29	Helsingborg, Sweden
11		Mason Lohrei M. Lohrei	D	6'4"	195	1/17/2001	22	Baton Rouge, LA
12	87	Ryan Mast R. Mast	D	6'4"	190	1/14/2003	20	Bloomfield Hills, MI
13	73	Charlie McAvoy C. McAvoy	D	6'1"	209	12/21/1997	25	Long Beach, NY
14		Ian Mitchell I. Mitchell	D	5'11"	193	1/18/1999	24	St. Albert, Canada
15	81	Dmitry Orlov D. Orlov	D	5'11"	214	7/23/1991	31	Novokuznetsk, Russia
16		Alec Regula A. Regula	D	6'4"	208	8/6/2000	22	West Bloomfield, MI
17	6	Mike Reilly M. Reilly	D	6'1"	200	7/13/1993	29	Glenview, IL
18	21	Dan Renouf D. Renouf	D	6'3"	198	6/1/1994	28	Pickering, Canada
19	86	Anton Stralman A. Stralman	D	5'11"	186	8/1/1986	36	Tibro, Sweden
20	52	Jacob Wilson J. Wilson	D			2/27/1997	25	Ballwin, MO
21	60	Kai Wissmann K. Wissmann	D			10/22/1996	26	Villingen-Schwenningen, Germany
22	65	Nick Wolff N. Wolff	D	6'5"	229	7/21/1996	26	Eagan, MN
23	67	Jakub Zboril J. Zboril	D	6'1"	201	2/21/1997	25	Brno, Czech Republic