    <SEC-DOCUMENT>0001104659-23-038203-index.html : 20230329
    <SEC-HEADER>0001104659-23-038203.hdr.sgml : 20230329
    <ACCEPTANCE-DATETIME>20230329120809
    ACCESSION NUMBER:		0001104659-23-038203
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		58
    FILED AS OF DATE:		20230329
    DATE AS OF CHANGE:		20230329

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SELECTIVE INSURANCE GROUP INC
    		CENTRAL INDEX KEY:			0000230557
    		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
    		IRS NUMBER:				222168890
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33067
    		FILM NUMBER:		23773569

    	BUSINESS ADDRESS:
    		STREET 1:		40 WANTAGE AVENUE
    		CITY:			BRANCHVILLE
    		STATE:			NJ
    		ZIP:			07890
    		BUSINESS PHONE:		9739483000

    	MAIL ADDRESS:
    		STREET 1:		40 WANTAGE AVE
    		STREET 2:		40 WANTAGE AVE
    		CITY:			BRANCHVILLE
    		STATE:			NJ
    		ZIP:			07890

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	SRI CORP
    		DATE OF NAME CHANGE:	19860508
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>tm239168d1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: tm239168d1_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>2
    <FILENAME>sigi-20221231.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 2 - file: sigi-20221231.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>3
    <FILENAME>sigi-20221231_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 3 - file: sigi-20221231_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>sigi-20221231_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 4 - file: sigi-20221231_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>sigi-20221231_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 5 - file: sigi-20221231_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tm239168d1_def14asp1img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: tm239168d1_def14asp1img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>tm239168d1_def14asp1img002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: tm239168d1_def14asp1img002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>tm239168d1_def14asp1img003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: tm239168d1_def14asp1img003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>tm239168d1_def14a-img01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: tm239168d1_def14a-img01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>tm239168d1_def14a-img02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: tm239168d1_def14a-img02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>tm239168d1_def14a-img03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: tm239168d1_def14a-img03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>tm239168d1_def14asp2img008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: tm239168d1_def14asp2img008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>tm239168d1_def14asp2img009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: tm239168d1_def14asp2img009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>tm239168d1_def14asp2img010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: tm239168d1_def14asp2img010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>tm239168d1_def14asp2img011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: tm239168d1_def14asp2img011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>tm239168d1_def14asp2img012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: tm239168d1_def14asp2img012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>tm239168d1_def14asp2img013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: tm239168d1_def14asp2img013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>tm239168d1_def14asp2img014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: tm239168d1_def14asp2img014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>tm239168d1_def14asp2img015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: tm239168d1_def14asp2img015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>tm239168d1_def14asp3img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: tm239168d1_def14asp3img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>tm239168d1_def14asp3img002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: tm239168d1_def14asp3img002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>tm239168d1_def14asp3img005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: tm239168d1_def14asp3img005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>tm239168d1_def14asp3img003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: tm239168d1_def14asp3img003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>tm239168d1_def14asp3img004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: tm239168d1_def14asp3img004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>tm239168d1_def14asp3img006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: tm239168d1_def14asp3img006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>tm239168d1_def14asp3img007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: tm239168d1_def14asp3img007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>tm239168d1_def14asp3img008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: tm239168d1_def14asp3img008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>tm239168d1_def14asp3img009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: tm239168d1_def14asp3img009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>tm239168d1_def14asp3img010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: tm239168d1_def14asp3img010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>tm2391681_def14aimg005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: tm2391681_def14aimg005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>tm2391681_def14aimg006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: tm2391681_def14aimg006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>tm2391681_def14aimg007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: tm2391681_def14aimg007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>tm2391681_def14aimg008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: tm2391681_def14aimg008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>tm239168d1_def14asp5img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: tm239168d1_def14asp5img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>tm239168d1_def14asp5img002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: tm239168d1_def14asp5img002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>tm239168d1_def14asp5img003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: tm239168d1_def14asp5img003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>tm239168d1_def14asp5img004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: tm239168d1_def14asp5img004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>tm239168d1_def14asp5img005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: tm239168d1_def14asp5img005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>tm239168d1_def14asp5img006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: tm239168d1_def14asp5img006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>tm239168d1_def14asp5img007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: tm239168d1_def14asp5img007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>tm239168d1_def14asp5img008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: tm239168d1_def14asp5img008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>tm239168d1_def14asp5img009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: tm239168d1_def14asp5img009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>tm239168d1_def14asp5img010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: tm239168d1_def14asp5img010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>tm239168d1_def14asp9img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: tm239168d1_def14asp9img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>tm239168d1_def14asp9img002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: tm239168d1_def14asp9img002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>tm239168d1_def14asp9img003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: tm239168d1_def14asp9img003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>tm239168d1_def14asp10img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: tm239168d1_def14asp10img001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>tm239168d1_def14a-img04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: tm239168d1_def14a-img04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>tm239168d1_def14a-img05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: tm239168d1_def14a-img05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>50
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 50 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>51
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 51 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>52
    <FILENAME>tm239168d1_def14a_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 52 - file: tm239168d1_def14a_htm.html

    Document 52 - RAW XML: tm239168d1_def14a_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>53
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 53 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>54
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>56
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 56 - file: FilingSummary.html

    Document 56 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>58
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 58 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>59
    <FILENAME>0001104659-23-038203-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: 0001104659-23-038203-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>