The 2020 roster for the Marlins included Pablo López at pitcher, Jorge Alfaro at catcher, Jesus Aguilar at first baseman, Jon Berti at second baseman and Brian Anderson at third baseman.

	NO.	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	24	Jesus Aguilar J. Aguilar	1B	6'3"	250	6/30/1990	30	Maracay, Venezuela
2	22	Sandy Alcantara S. Alcantara	P	6'4"	170	9/7/1995	24	San Juan de la Maguana, Dominican Republic
3	38	Jorge Alfaro J. Alfaro	C	6'2"	225	6/11/1993	27	Sincelejo, Colombia
4	65	Eddy Alvarez E. Alvarez	2B	5'9"	180	1/30/1990	30	Miami, FL
5	15	Brian Anderson B. Anderson	3B	6'3"	185	5/19/1993	27	Edmond, OK
6	5	Jon Berti J. Berti	2B	5'10"	195	1/22/1990	30	Troy, MI
7	35	Richard Bleier R. Bleier	P	6'3"	215	4/16/1987	33	Davie, FL
8	33	Brad Boxberger B. Boxberger	P	6'2"	205	5/27/1988	32	Fullerton, CA
9	43	Jeff Brigham J. Brigham	P	6'0"	200	2/16/1992	28	Federal Way, WA
10	25	Lewis Brinson L. Brinson	RF	6'3"	195	5/8/1994	26	Fort Lauderdale, FL
11	79	Edward Cabrera E. Cabrera	P	6'4"	175	4/13/1998	22	Santiago, Dominican Republic
12	72	Daniel Castano D. Castano	P	6'4"	230	9/17/1994	25	Orlando, FL
13	29	Francisco Cervelli F. Cervelli	C	6'1"	210	3/6/1986	34	Valencia, Venezuela
14	70	Jazz Chisholm Jr. J. Chisholm Jr.	SS	5'11"	165	2/1/1998	22	Nassau, Bahamas
15	26	Garrett Cooper G. Cooper	1B	6'6"	230	12/25/1990	29	Torrance, CA
16	68	Lewin Diaz L. Diaz	1B	6'4"	225	11/19/1996	23	Santiago, Dominican Republic
17	1	Isan Díaz I. Díaz	2B	5'10"	185	5/27/1996	24	Bayamon, Puerto Rico
18	23	Corey Dickerson C. Dickerson	LF	6'1"	210	5/22/1989	31	McComb, MS
19	64	Robert Dugger R. Dugger	P	6'2"	180	7/3/1995	24	Tucson, AZ
20	52	Brett Eibner B. Eibner	P	6'4"	215	12/2/1988	31	San Diego, CA
21	11	Logan Forsythe L. Forsythe	3B	6'1"	205	1/14/1987	33	Memphis, TN
22	93	Yimi García Y. García	P	6'0"	225	8/18/1990	29	Moca, Dominican Republic
23	94	Braxton Garrett B. Garrett	P	6'3"	190	8/5/1997	22	Florence, AL
24	75	Jorge Guzman J. Guzman	P	6'2"	182	1/28/1996	24	Las Matas de Santa Cruz, Dominican Republic
25	4	Monte Harrison M. Harrison	CF	6'3"	220	8/10/1995	24	Lee's Summit, MO