[[Berkas:Conor Coady and Harry Kane.jpg|jmpl|Kane (kanan) bersiap untuk Inggris di [[2012 UEFA European Under-19 Championship|UEFA European Under-19 Championship 2012]]]]
Pada Januari 2010, Kane dipanggil untuk bermain dengan [[England national under-{{timnasu|17 football team|Inggris|tim Inggris U-17]]}} untuk turnamen Algarve di [[Portugal]].<ref>{{cite web |url=http://www.thefootballnetwork.net/main/s565/st153364.htm |title=U17 squad announced |date=23 JanuaryJanuari 2010 |publisher=Thefootballnetwork.net |access-date=2017-10-09 |archive-date=2010-05-16 |archive-url=https://web.archive.org/web/20100516163743/http://www.thefootballnetwork.net/main/s565/st153364.htm |dead-url=no }}</ref> Kane melewatkan [[2010 UEFA European Under-17 Championship|UEFA European Under-17 Championship 2010]] karena sakit, dengan {{timnasu|17|Inggris|Inggris}} memenangkan turnamen tersebut.<ref>{{cite news|url=https://www.theguardian.com/football/2015/mar/25/harry-kane-england-inspiration|last=Hytner|first=David|title=Harry Kane is an inspiration to all the young England players coming through|newspaper=The Guardian|location=London|date=25 MarchMaret 2015|accessdate=30 MarchMaret 2015|archive-date=2019-04-12|archive-url=https://web.archive.org/web/20190412065247/https://www.theguardian.com/football/2015/mar/25/harry-kane-england-inspiration|dead-url=no}}</ref> Ia kemudian pindah ke [[England national under-{{timnasu|19 football team|Inggris|U-19]]}} dan mencetak 2 gol dalam kemenangan 6–1 atas [[Albania national under-19 football team|Albania]] pada 8 Oktober 2010.<ref>{{cite web |url=http://www.england-mad.co.uk/roll/edb2/england_u19_6_albania_u19_1_567840/index.shtml |title=England U19 6 Albania U19 1 |date=8 OctoberOktober 2010 |publisher=england-mad.co.uk |access-date=2017-10-09 |archive-date=2012-03-17 |archive-url=https://web.archive.org/web/20120317053936/http://www.england-mad.co.uk/roll/edb2/england_u19_6_albania_u19_1_567840/index.shtml |dead-url=yes }}</ref> Kane berperan penting dalam melajunya Inggris U-{{timnasu|19|Inggris}} hingga semifinal [[2012 UEFA European Under-19 Championship|UEFA European Under-19 Championship 2012]] di Estonia. Kane mencetak gol kemenangan atas Perancis di game terakhir babak grup agar lolos ke semifinal.<ref>{{cite web|title=Tottenham striker Kane delighted to be in England scoring form in U19 Euros|url=http://www.tribalfootball.com/articles/tottenham-striker-kane-delighted-be-engand-scoring-form-u19-euros-3343721|publisher=Tribal Football|accessdate=21 MarchMaret 2015|archive-date=2015-04-02|archive-url=https://web.archive.org/web/20150402133401/http://www.tribalfootball.com/articles/tottenham-striker-kane-delighted-be-engand-scoring-form-u19-euros-3343721|dead-url=no}}</ref> Total Kane tampil 14 kali untuk Inggris U-{{timnasu|19|Inggris}} dan berkontribusi atas 6 gol pada masa itu.<ref name="FA">{{cite web|title=Harry Kane|url=http://www.thefa.com/england/all-teams/players/k/harry-kane|publisher=The Football Association|accessdate=21 MarchMaret 2015|archive-date=2016-03-16|archive-url=https://web.archive.org/web/20160316151115/http://www.thefa.com/england/all-teams/players/k/harry-kane|dead-url=yes}}</ref>
Pada 28 Mei 2013, ia dinamai skuat 21 orang oleh manajer [[Peter Taylor (footballer, born 1953)|Peter Taylor]] untuk [[2013Piala FIFADunia U-20 WorldFIFA Cup2013|FIFAPiala Dunia U-20 World Cup 2013]].<ref>[http://www.thefa.com/england/mens-u20s/News/2013/u20s-world-cup-squad-announcement-280513 "Final squad named"] {{Webarchive|url=https://archive.today/20130615071407/http://www.thefa.com/england/mens-u20s/News/2013/u20s-world-cup-squad-announcement-280513 |date=2013-06-15 }} The Football Association. 28 MayMei 2013. RetrievedDiakses 17 JuneJuni 2013.</ref> Ia membuat debutnya pada 16 Juni, dalam kemenangan 3–0 dalam pra-game atas [[Uruguay national under-20 football team|Uruguay]].<ref>[http://www.thefa.com/england/mens-u20s/News/2013/uruguay-report-160613 "Training win for Three Lions"] {{Webarchive|url=https://archive.today/20130624222816/http://www.thefa.com/england/mens-u20s/News/2013/uruguay-report-160613 |date=2013-06-24 }} The Football Association. 16 June 2013. Retrieved 17 JuneJuni 2013.</ref> Ia memberi assist gol [[Luke Williams (footballer, born 1993)|Luke Williams]] dalam game pembuka pada 23 Juni 2013 atas [[Iraq national under-20 football team|Irak]].<ref>[http://www.thefa.com/england/mens-u20s/News/2013/iraq-updates-230613 "England v Iraq"] {{Webarchive|url=https://web.archive.org/web/20131209053925/http://www.thefa.com/england/mens-u20s/News/2013/iraq-updates-230613 |date=2013-12-09 }} The Football Association. 23 JuneJuni 2013. RetrievedDiakses 24 JuneJuni 2013/</ref> Ia lalu mencetak gol di game berikutnya melawan [[Chile national under-20 football team|Chile]], diassistdi assist oleh [[Ross Barkley]] dan menembak dari ujung [[penalty area|area penalti]].<ref>[http://www.thefa.com/england/mens-u20s/News/2013/engchi_matchreport "All square in Antalya"] {{Webarchive|url=https://web.archive.org/web/20130927221701/http://www.thefa.com/england/mens-u20s/News/2013/engchi_matchreport |date=2013-09-27 }} The Football Association. 26 JuneJuni 2013. RetrievedDiakses 26 JuneJuni 2013.</ref>
Pada 13 Agustus 2013, Kane membuat debutnya untuk [[England national under-{{timnasu|21 football team|Inggris|U-21]]}} melawan [[Scotland national under-21 football team|Skotlandia]].<ref name="FA"/> Di pertandingan itu, ia datang dari cadangan pada menit 58, dan Inggris menang 6–0.<ref>{{cite web|title=England Under-21s beat Scotland U21s 6–0|url=http://www1.skysports.com/football/live/match/292365/report|publisher=Sky Sports|accessdate=21 MarchMaret 2015|archive-date=2015-04-02|archive-url=https://web.archive.org/web/20150402135131/http://www1.skysports.com/football/live/match/292365/report|dead-url=no}}</ref> Pada 10 Oktober, ia mencetak hat-trick untuk {{timnasu|21|Inggris U21}} melawan [[San Marino national under-21 football team|San Marino]] ketika [[2015 UEFA European Under-21 Championship qualification Group 1|kualifikasi 2015 UEFA European Under-21 Championship]].<ref>{{cite web|title=San Marino U21 vs England U21|url=http://int.soccerway.com/matches/2013/10/10/europe/uefa-u21-championship/san-marino-under-21/england-under-21/1445799/|work=Soccerway|publisher=Perform Group|accessdate=9 April 2016|archive-date=2022-03-19|archive-url=https://web.archive.org/web/20220319074955/https://int.soccerway.com/matches/2013/10/10/europe/uefa-u21-championship/san-marino-under-21/england-under-21/1445799/|dead-url=no}}</ref> Ia terus mencetak gol, dengan brace atas [[France national under-{{timnasu|21 football team|Perancis]]|Perancis}} menandai 13 gol dalam 12 game untuk U21.<ref name=SW>{{cite web|title=H. Kane|url=http://uk.soccerway.com/players/harry-kane/158575/|work=Soccerway|publisher=Perform Group|accessdate=9 April 2016|archive-date=2022-08-15|archive-url=https://web.archive.org/web/20220815224910/https://uk.soccerway.com/players/harry-kane/158575/|dead-url=no}}</ref>
Kane masuk skuat Inggris U21 pada [[2015 UEFA European Under-21 Championship|UEFA European Under-21 Championship 2015]] di Republik Ceko, meski ditentang oleh manajer klub [[Mauricio Pochettino]].<ref>{{cite news|title=England Under-21s: Harry Kane in European Championship squad|url=http://www.bbc.co.uk/sport/0/football/32807828|accessdate=20 May 2015|publisher=BBC Sport|date=20 May 2015|archive-date=2015-08-13|archive-url=https://web.archive.org/web/20150813171616/http://www.bbc.co.uk/sport/0/football/32807828|dead-url=no}}</ref> Ia bermain tiap menit dalam turnamen itu, yang berakhir dengan mereka sebagai juru kunci klub.<ref>{{cite news|title=Portugal begin with win against England|url=http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015368/index.html|accessdate=23 August 2015|publisher=UEFA|date=18 June 2015|archive-date=2018-08-11|archive-url=https://web.archive.org/web/20180811134450/https://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015368/index.html|dead-url=no}}</ref><ref>{{cite news|title=England beat Sweden through late Lingard goal|url=http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015374/index.html|accessdate=23 August 2015|publisher=UEFA|date=21 June 2015|archive-date=2018-01-16|archive-url=https://web.archive.org/web/20180116182800/http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015374/index.html|dead-url=no}}</ref><ref>{{cite news|title=Italy beat England but Sweden deny them semi spot|url=http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015378/index.html|accessdate=23 August 2015|publisher=UEFA|date=24 June 2015|archive-date=2018-06-15|archive-url=https://web.archive.org/web/20180615015134/http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015378/index.html|dead-url=no}}</ref>
