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    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		55
    CONFORMED PERIOD OF REPORT:	20200616
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20200616
    DATE AS OF CHANGE:		20200616

    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

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-14703
    		FILM NUMBER:		20965056

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

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    		STREET 1:		52 S. BROAD STREET
    		CITY:			NORWICH
    		STATE:			NY
    		ZIP:			13815
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