<SEC-DOCUMENT>0001564590-22-012779-index.html : 20220331
<SEC-HEADER>0001564590-22-012779.hdr.sgml : 20220331
<ACCEPTANCE-DATETIME>20220331090158
ACCESSION NUMBER:		0001564590-22-012779
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20220510
FILED AS OF DATE:		20220331
DATE AS OF CHANGE:		20220331

FILER:

	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

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39110
		FILM NUMBER:		22789366

	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>DEF 14A
<SEQUENCE>1
<FILENAME>onto-def14a_20220510.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: onto-def14a_20220510.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>gru4i3iglfgi000001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: gru4i3iglfgi000001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>gru4i3iglfgi000015.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: gru4i3iglfgi000015.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>gru4i3iglfgi000010.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: gru4i3iglfgi000010.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>gru4i3iglfgi000011.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: gru4i3iglfgi000011.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>gru4i3iglfgi000006.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: gru4i3iglfgi000006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>gru4i3iglfgi000003.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: gru4i3iglfgi000003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>gru4i3iglfgi000007.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: gru4i3iglfgi000007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>gru4i3iglfgi000005.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: gru4i3iglfgi000005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>gru4i3iglfgi000008.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: gru4i3iglfgi000008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>gru4i3iglfgi000016.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: gru4i3iglfgi000016.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>gru4i3iglfgi000013.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: gru4i3iglfgi000013.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>gru4i3iglfgi000009.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: gru4i3iglfgi000009.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>gru4i3iglfgi000002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: gru4i3iglfgi000002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>gru4i3iglfgi000014.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: gru4i3iglfgi000014.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>gru4i3iglfgi000004.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: gru4i3iglfgi000004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>gru4i3iglfgi000012.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: gru4i3iglfgi000012.jpg
</DOCUMENT> </SEC-DOCUMENT>