    <SEC-DOCUMENT>0001171843-24-001817-index.html : 20240403
    <SEC-HEADER>0001171843-24-001817.hdr.sgml : 20240403
    <ACCEPTANCE-DATETIME>20240403165120
    ACCESSION NUMBER:		0001171843-24-001817
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240403
    DATE AS OF CHANGE:		20240403
    EFFECTIVENESS DATE:		20240403

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HARVARD BIOSCIENCE INC
    		CENTRAL INDEX KEY:			0001123494
    		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
    		ORGANIZATION NAME:           	08 Industrial Applications and Services
    		IRS NUMBER:				043306140
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33957
    		FILM NUMBER:		24819705

    	BUSINESS ADDRESS:
    		STREET 1:		84 OCTOBER HILL RD
    		CITY:			HOLLISTON
    		STATE:			MA
    		ZIP:			01746
    		BUSINESS PHONE:		5088938999

    	MAIL ADDRESS:
    		STREET 1:		84 OCTOBER HILL ROAD
    		CITY:			HOLLISTON
    		STATE:			MA
    		ZIP:			01746
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>ars_040324.pdf
    <DESCRIPTION>FORM ARS
    <TEXT>
    Document 1 - file: ars_040324.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>