<SEC-DOCUMENT>0001257815-23-000017-index.html : 20230213
<SEC-HEADER>0001257815-23-000017.hdr.sgml : 20230213
<ACCEPTANCE-DATETIME>20230213163320
ACCESSION NUMBER:		0001257815-23-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20230210
FILED AS OF DATE:		20230213
DATE AS OF CHANGE:		20230213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OH Yoon Ah
		CENTRAL INDEX KEY:			0001889970

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39110
		FILM NUMBER:		23619063

	MAIL ADDRESS:	
		STREET 1:		16 JONSPIN ROAD
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONTO INNOVATION INC.
		CENTRAL INDEX KEY:			0000704532
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				942276314
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1226

	BUSINESS ADDRESS:	
		STREET 1:		16 JONSPIN ROAD
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887
		BUSINESS PHONE:		9782536200

	MAIL ADDRESS:	
		STREET 1:		16 JONSPIN ROAD
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Onto Innovation Inc.
		DATE OF NAME CHANGE:	20191025

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NANOMETRICS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: edgardoc.html

Document 1 - RAW XML: edgardoc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>exhibit24.txt
<DESCRIPTION>EDGAR SUPPORTING DOCUMENT
<TEXT>
Document 2 - file: exhibit24.txt

</DOCUMENT>
</SEC-DOCUMENT>