<SEC-DOCUMENT>0001140361-21-022337-index.html : 20210625
<SEC-HEADER>0001140361-21-022337.hdr.sgml : 20210625
<ACCEPTANCE-DATETIME>20210625161531
ACCESSION NUMBER:		0001140361-21-022337
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210625
DATE AS OF CHANGE:		20210625

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NBT BANCORP INC
		CENTRAL INDEX KEY:			0000790359
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				161268674
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14703
		FILM NUMBER:		211047930

	BUSINESS ADDRESS:	
		STREET 1:		52 S BROAD ST
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
		BUSINESS PHONE:		6073372265

	MAIL ADDRESS:	
		STREET 1:		52 S. BROAD STREET
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>brhc10026081_11k.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: brhc10026081_11k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>2
<FILENAME>brhc10026081_ex23.htm
<DESCRIPTION>EXHIBIT 23
<TEXT>
Document 2 - file: brhc10026081_ex23.htm

</DOCUMENT>
</SEC-DOCUMENT>