<SEC-DOCUMENT>0001193125-20-265398-index.html : 20201007
<SEC-HEADER>0001193125-20-265398.hdr.sgml : 20201007
<ACCEPTANCE-DATETIME>20201007134221
ACCESSION NUMBER:		0001193125-20-265398
CONFORMED SUBMISSION TYPE:	24F-2NT
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200710
FILED AS OF DATE:		20201007
DATE AS OF CHANGE:		20201007
EFFECTIVENESS DATE:		20201007

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA ACORN TRUST
		CENTRAL INDEX KEY:			0000002110
		IRS NUMBER:				362692100
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		24F-2NT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-34223
		FILM NUMBER:		201228774

	BUSINESS ADDRESS:	
		STREET 1:		71 S. WACKER DRIVE, SUITE 2500
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3126349200

	MAIL ADDRESS:	
		STREET 1:		71 S. WACKER DRIVE, SUITE 2500
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY ACORN TRUST
		DATE OF NAME CHANGE:	20010424

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACORN INVESTMENT TRUST
		DATE OF NAME CHANGE:	19940204

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACORN FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000002110
<SERIES-ID>S000009187
<SERIES-NAME>Columbia Acorn Select
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024966
<CLASS-CONTRACT-NAME>Columbia Acorn Select Class A
<CLASS-CONTRACT-TICKER-SYMBOL>LTFAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024968
<CLASS-CONTRACT-NAME>Columbia Acorn Select Class C
<CLASS-CONTRACT-TICKER-SYMBOL>LTFCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024969
<CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>ACTWX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122743
<CLASS-CONTRACT-NAME>Columbia Acorn Select Advisor Class
<CLASS-CONTRACT-TICKER-SYMBOL>CSSRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122744
<CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional 2 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CSLRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122745
<CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional 3 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CSLYX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000002110
<SERIES-ID>S000033622
<SERIES-NAME>Columbia Acorn Emerging Markets Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103328
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Class A
<CLASS-CONTRACT-TICKER-SYMBOL>CAGAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103329
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Class C
<CLASS-CONTRACT-TICKER-SYMBOL>CGMCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000103331
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Institutional Class
<CLASS-CONTRACT-TICKER-SYMBOL>CEFZX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122753
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Advisor Class
<CLASS-CONTRACT-TICKER-SYMBOL>CAERX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000122754
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Institutional 2 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CANRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000128887
<CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Institutional 3 Class
<CLASS-CONTRACT-TICKER-SYMBOL>CPHRX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>24F-2NT
<SEQUENCE>1
<FILENAME>d95317d24f2nt.htm
<DESCRIPTION>24F-2NT
<TEXT>
Document 1 - file: d95317d24f2nt.htm

</DOCUMENT>
</SEC-DOCUMENT>