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This is a list of the 25 tallest buildings in the U.S. state of Massachusetts outside of Boston, its capital and largest city. The U.S state of Massachusetts is a New England State north of New York and shares its border with Vermont, New Hampshire, Rhode Island, Connecticut and New York.^[1] The buildings listed below are monitored by the Board of Building Regulations and Standards of Massachusetts.

Of the buildings listed, the top three are Monarch Place (a 401 foot tall building in Springfield), Tower Square (a 370 foot tall building, also in Springfield), and Eastgate Tower (a 356 foot ball building in Cambridge).

Rankings are approximate; their accuracy cannot be guaranteed on account of uncertainties in the height data and the possibility of missing items.

Rank	Name	Image	Height ft (m)	Floors	Year	Location	Use	Ref.
1	Monarch Place		401 ft (122 m)	26	1987	Springfield	Commercial office	[2]
2	Tower Square		370 ft (110 m)	29	1970	Springfield	Commercial office	[2]
3	Eastgate Tower		356 ft (109 m)	30	1967	MIT, Cambridge	Student housing	[3]
4	Encore Boston Harbor		350 ft (110 m)	24	2019	Everett	Casino, hotel
5	MIT Site 4		315 ft (96 m)	29	2020	Cambridge	Student housing	[4]
6	Springfield Municipal Group Campanile		300 ft (91 m)	-	1913	Springfield	Campanile	[5]
7=	W.E.B. Du Bois Library		297 ft (91 m)	22	1964	UMassAmherst, Amherst	University	[6]
7=	Prospect Union Square		297 ft (91 m)	25	2023	Somerville	Residential	[7]
9	Green Building		295 ft (90 m)	21	1964	MIT, Cambridge	University	[8][9][10][11]
10	145 Broadway		294 ft (90 m)	19	2018	Cambridge	Commercial office	[12]
11	Boston Marriott Cambridge		290 ft (88 m)	26	1988	Cambridge	Hotel	[13]
12=	Skyview Downtown		289 ft (88 m)	34	1977	Springfield	Residential	[14][15]
12=	The 6Hundred		289 ft (88 m)	22	1964	Worcester	Residential	[16][17]
12=	Worcester Plaza		289 ft (88 m)	20	1975	Worcester	Commercial office	[16][18][19]
15	Proto Kendall Square		284 ft (87 m)	22	2018	Cambridge		[20]
16	40 Thorndike Street		282 ft (86 m)	22	1974	Cambridge	Governmental, vacant	[21]
17	MIT Site 5		280 ft (85 m)	18	2020	MIT, Cambridge	University	[22][23]
18	North Point Apartments		237 ft (72 m)	22	2008	Cambridge	Residential
19=	Calvin Coolidge Tower		276 ft (84 m)	22	1966	UMassAmherst, Amherst	Student housing	[24]
19=	John Adams Tower		276 ft (84 m)	22	1966	UMassAmherst, Amherst	Student housing	[25]
19=	John Quincy Adams Tower		276 ft (84 m)	22	1966	UMassAmherst, Amherst	Student housing	[26]
19=	John F. Kennedy Tower		276 ft (84 m)	22	1966	UMassAmherst, Amherst	Student housing	[27]
19=	George Washington Tower		276 ft (84 m)	22	1966	UMassAmherst, Amherst	Student housing	[28]
24	101 Main St		270 ft (82 m)	18	1983	Cambridge	Commercial office	[29][30]
25	Ayer Mill		267 ft (81 m)	6	1909	Lawrence	Industrial	[31]

• List of tallest buildings in Boston
• List of tallest buildings and structures in Cambridge, Massachusetts
• List of tallest buildings in Springfield, Massachusetts
• List of tallest buildings in Worcester, Massachusetts