The 2021 roster for the Giants included Kevin Gausman at pitcher, Buster Posey at catcher, Brandon Belt at first baseman, Wilmer Flores at second baseman and Evan Longoria at third baseman.

	NO.	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	48	Jose Alvarez J. Alvarez	P	5'11"	180	5/6/1989	32	Barcelona, Venezuela
2	45	Caleb Baragar C. Baragar	P	6'3"	215	4/9/1994	27	Jenison, MI
3	60	Joey Bart J. Bart	C	6'3"	235	12/15/1996	24	Buford, GA
4	38	Tyler Beede T. Beede	P	6'3"	211	5/23/1993	28	Worcester, MA
5	9	Brandon Belt B. Belt	1B	6'4"	235	4/20/1988	33	Nacogdoches, TX
6	23	Skye Bolt S. Bolt	CF	6'2"	187	1/15/1994	27	Atlanta, GA
7	59	John Brebbia J. Brebbia	P	6'1"	185	5/30/1990	31	Sharon, MA
8	23	Kris Bryant K. Bryant	RF	6'5"	230	1/4/1992	29	Las Vegas, NV
9	2	Curt Casali C. Casali	C	6'3"	225	11/9/1988	32	Walnut Creek, CA
10	76	Kervin Castro K. Castro	P	6'0"	185	2/7/1999	22	Maracay, Venezuela
11	37	Tyler Chatwood T. Chatwood	P	6'0"	185	12/16/1989	31	Redlands, CA
12	35	Brandon Crawford B. Crawford	SS	6'2"	227	1/21/1987	34	Mountain View, CA
13	47	Johnny Cueto J. Cueto	P	5'11"	229	2/15/1986	35	San Pedro de Macoris, Dominican Republic
14	49	Jaylin Davis J. Davis	RF	6'1"	190	7/1/1994	27	Greensboro, NC
15	26	Anthony DeSclafani A. DeSclafani	P	6'1"	195	4/18/1990	31	Freehold, NJ
16	12	Alex Dickerson A. Dickerson	LF	6'3"	235	5/26/1990	31	Poway, CA
17	75	Camilo Doval C. Doval	P	6'2"	180	7/4/1997	23	Yamasa, Dominican Republic
18	1	Mauricio Dubón M. Dubón	CF	6'0"	160	7/19/1994	26	San Pedro Sula, Honduras
19	6	Steven Duggar S. Duggar	CF	6'2"	189	11/4/1993	27	Spartanburg, SC
20	39	Thairo Estrada T. Estrada	2B	5'10"	190	2/22/1996	25	Bejuma, Venezuela
21	41	Wilmer Flores W. Flores	2B	6'3"	205	8/6/1991	29	Valencia, Venezuela
22	66	Jarlín García J. García	P	6'3"	215	1/18/1993	28	Santo Domingo, Dominican Republic
23	34	Kevin Gausman K. Gausman	P	6'3"	190	1/6/1991	30	Centennial, CO
24	17	Luis González L. González	CF	6'1"	195	9/10/1995	25	Hermosillo, Mexico
25	65	Jay Jackson J. Jackson	P	6'1"	195	10/27/1987	33	Greenville, SC