<SEC-DOCUMENT>0001077771-18-000100-index.html : 20180601
<SEC-HEADER>0001077771-18-000100.hdr.sgml : 20180601
<ACCEPTANCE-DATETIME>20180601171400
ACCESSION NUMBER:		0001077771-18-000100
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180530
ITEM INFORMATION:		Changes in Registrant's Certifying Accountant
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180601
DATE AS OF CHANGE:		20180601

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UMPQUA HOLDINGS CORP
		CENTRAL INDEX KEY:			0001077771
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				931261319
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34624
		FILM NUMBER:		18875968

	BUSINESS ADDRESS:	
		STREET 1:		ONE SW COLUMBIA STREET
		STREET 2:		SUITE 1200
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97258
		BUSINESS PHONE:		503-727-4100

	MAIL ADDRESS:	
		STREET 1:		ONE SW COLUMBIA STREET
		STREET 2:		SUITE 1200
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97258
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>umpq8-kauditor.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: umpq8-kauditor.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-16.1
<SEQUENCE>2
<FILENAME>umpqexhibit161auditor.htm
<DESCRIPTION>LETTER FROM MOSS ADAMS LLP DATED JUNE 1, 2018
<TEXT>
Document 2 - file: umpqexhibit161auditor.htm

</DOCUMENT>
</SEC-DOCUMENT>