<SEC-DOCUMENT>0001104659-18-011669-index.html : 20180223
<SEC-HEADER>0001104659-18-011669.hdr.sgml : 20180223
<ACCEPTANCE-DATETIME>20180223150510
ACCESSION NUMBER:		0001104659-18-011669
CONFORMED SUBMISSION TYPE:	N-Q
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180223
DATE AS OF CHANGE:		20180223
EFFECTIVENESS DATE:		20180223

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEKLA HEALTHCARE INVESTORS
		CENTRAL INDEX KEY:			0000805267
		IRS NUMBER:				046564285
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		N-Q
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04889
		FILM NUMBER:		18636128

	BUSINESS ADDRESS:	
		STREET 1:		100 FEDERAL STREET
		STREET 2:		19TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		6177728515

	MAIL ADDRESS:	
		STREET 1:		100 FEDERAL STREET
		STREET 2:		19TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	H&Q HEALTHCARE INVESTORS
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-Q
<SEQUENCE>1
<FILENAME>a18-2439_1nq.htm
<DESCRIPTION>N-Q
<TEXT>
Document 1 - file: a18-2439_1nq.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>a18-2439_1ex99dcert.htm
<DESCRIPTION>EX-99.CERT
<TEXT>
Document 2 - file: a18-2439_1ex99dcert.htm

</DOCUMENT>
</SEC-DOCUMENT>