<SEC-DOCUMENT>0001104659-20-132294-index.html : 20201204
<SEC-HEADER>0001104659-20-132294.hdr.sgml : 20201204
<ACCEPTANCE-DATETIME>20201204121334
ACCESSION NUMBER:		0001104659-20-132294
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20200930
FILED AS OF DATE:		20201204
DATE AS OF CHANGE:		20201204
EFFECTIVENESS DATE:		20201204

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-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04889
		FILM NUMBER:		201369290

	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>
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<FILENAME>tm2030670-1_ncsr.htm
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Document 1 - file: tm2030670-1_ncsr.htm

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<FILENAME>tm2030670d1ex99dcodeeth.htm
<DESCRIPTION>EX-99.CODEETH
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Document 2 - file: tm2030670d1ex99dcodeeth.htm

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<DOCUMENT>
<TYPE>EX-99.CERT
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<FILENAME>tm2030670d1ex99dcert.htm
<DESCRIPTION>EX-99.CERT
<TEXT>
Document 3 - file: tm2030670d1ex99dcert.htm

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<TYPE>EX-99.SECTION 19(A)
<SEQUENCE>4
<FILENAME>tm2030670d1ex99dsection19a.htm
<DESCRIPTION>EX-99.SECTION 19(A)
<TEXT>
Document 4 - file: tm2030670d1ex99dsection19a.htm

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<FILENAME>tm2030670d1ex99d906cert.htm
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Document 5 - file: tm2030670d1ex99d906cert.htm

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Document 6 - file: j20306702_aa001.jpg

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Document 7 - file: j20306702_ba002.jpg

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Document 8 - file: j20306702_ba003.jpg

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Document 9 - file: j20306702_ba004.jpg

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Document 10 - file: j20306702_ba005.jpg

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Document 11 - file: j20306702_ba006.jpg

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Document 12 - file: j20306702_ba007.jpg

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<FILENAME>j20306702_ba008.jpg
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Document 13 - file: j20306702_ba008.jpg

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Document 14 - file: j20306702_ba009.jpg

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