Japanese Royal visit to Samoa|publisher=Embassy of Japan in New Zealand|accessdate=14 Mei 2015}}</ref> Pada bulan Maret 2004, Fumihito dan Kiko kembali ke Belanda untuk pemakaman [[Juliana dari Belanda|Ratu Juliana]].<ref name=OverseasVisits/> Pada Januari 2005, mereka mengunjungi Luksemburg untuk menghadiri pemakaman [[Joséphine Charlotte dari Belgia|Joséphine-Charlotte, istri Adipati Agung Luksemburg]].<ref name=OverseasVisits/> Dari Oktober hingga November 2006, mereka mengunjungi [[Paraguay]] untuk memperingati 70 tahun [[Diaspora Jepang|emigrasi Jepang]] ke negara itu.<ref>{{cite web|url=http://www.aaj.tv/2006/11/prince-akishino-to-visit-paraguay-on-wednesday/|title=Prince Akishino to visit Paraguay on Wednesday|publisher=AAJ News|accessdate=14 Mei 2015|archive-date=2019-05-07|archive-url=https://web.archive.org/web/20190507145136/http://www.aaj.tv/2006/11/prince-akishino-to-visit-paraguay-on-wednesday/|dead-url=yes}}</ref> Pada Januari 2008, mereka mengunjungi Indonesia untuk upacara memperingati 50 tahun pembentukan hubungan diplomatik antara Jepang dan [[Republik Indonesia]].<ref>{{cite web|url=http://news.xinhuanet.com/english/2008-01/19/content_7452104.htm|title=Indonesian president meets Japanese Prince Akishino|publisher=China View|accessdate=14 Mei 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20160822200636/http://news.xinhuanet.com/english/2008-01/19/content_7452104.htm|archivedate=22 Agustus 2016|df=dmy-all}}</ref>
Mereka mengunjungi [[Austria]], [[Bulgaria]], [[HongariaHungaria]], dan [[Rumania]] pada Mei 2009 pada kesempatan "Tahun Persahabatan Jepang-Donau 2009"<ref>{{cite web|url=http://bulgarian.ibox.bg/news/id_788912330|title=Prince and princess Akishino on official visit to Bulgaria|publisher=bulgarian.ibox.bg|accessdate=14 Mei 2015}}</ref><ref>{{cite web|url=http://tokyo.mae.ro/en/node/396|title=Political relations|publisher=Embassy of Romania to Japan|accessdate=14 Mei 2015}}</ref> dan Belanda pada Agustus 2009 untuk acara peringatan peringatan 400 tahun hubungan perdagangan antara Jepang dan Belanda.<ref>{{cite web|url=http://gpdhome.typepad.com/royalblognl_news_summary/2009/08/prince-akishino-and-his-wife-princess-kiko-arrived-in-the-netherlands-to-mark-the-400th-anniversary-of-the-commencement-o.html|title=Dutch appeal to visiting Prince Akishino|publisher=typepad.com|accessdate=14 Mei 2015}}</ref> Mereka juga mengunjungi [[Kosta Rika]],<ref>{{cite web|url=http://www.ticotimes.net/2011/01/28/japanese-royal-visit-a-first-in-costa-rica|title=Japanese royals visit Costa Rica|publisher=The Tico Times|accessdate=14 Mei 2015}}</ref> [[Uganda]],<ref>{{cite web|url=http://www.newvision.co.ug/mobile/Detail.aspx?NewsID=631931&CatID=413 |title=Japan royals visit Uganda |publisher=New Vision |accessdate=14 May 2015 |deadurl=yes |archiveurl=https://web.archive.org/web/20150518113910/http://www.newvision.co.ug/mobile/Detail.aspx?NewsID=631931&CatID=413 |archivedate=18 Mei 2015 |df= }}</ref> [[Kroasia]],<ref>{{cite web|url=http://www.dubrovnik.com/home/26-news/559-japanese-prince-and-princess-akishino-to-visit-croatia|title=Japanese prince and princess Akishino to visit Croatia|publisher=dubrovnik.com|accessdate=14 Mei 2015}}</ref> [[Republik Slovakia]],<ref>{{cite web|url=http://www.mofa.go.jp/region/europe/slovak/data.html|title=Japan-Slovakia Relations|publisher=Ministry of Foreign Affairs of Japan|accessdate=14 Mei 2015}}</ref> [[Slovenia]],<ref>{{cite web|url=http://www.sloveniatimes.com/japanese-prince-and-princes-akishino-to-visit-slovenia|title=Japanese Prince and Princes Akishino to Visit Slovenia|publisher=Slovenian Times|accessdate=14 Mei 2015}}</ref> [[Peru]], dan [[Argentina]].<ref>{{cite web|url=http://www.peruthisweek.com/news-prince-akishino-and-princess-kiko-of-japan-visit-peru-102095|title=Prince Akishino and Princess Kiko of Japan visit Peru|publisher=Peru this week|accessdate=14 Mei 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20150518100710/http://www.peruthisweek.com/news-prince-akishino-and-princess-kiko-of-japan-visit-peru-102095|archivedate=18 Mei 2015|df=dmy-all}}</ref><ref>{{cite web|url=http://newsonjapan.com/html/newsdesk/article/106465.php|title=Prince, Princess Akishino in Argentina|publisher=News on Japan|accessdate=14 Mei 2015|archive-date=2015-05-18|archive-url=https://web.archive.org/web/20150518092734/http://newsonjapan.com/html/newsdesk/article/106465.php|dead-url=yes}}</ref> Dari Juni hingga Juli 2014, Fumihito dan Kiko mengunjungi Republik [[Zambia]] dan Republik Persatuan [[Tanzania]].<ref>{{cite web|url=http://www.zm.emb-japan.go.jp/en/topic/2014.7.2.Prince%20Princess%20Akishino.E.html|title=Their Imperial Highnesses Prince and Princess Akishino’s visit to Zambia|publisher=Embassy of Japan in the Republic of Zambia|accessdate=14 Mei 2015}}</ref><ref>{{cite web|url=http://www.tanzaniaparks.com/news/japan-prince-visit.html|title=Prince Akishino of Japan visits Serengeti and Ngorongoro over the weekend|publisher=The official website of Tanzania National Parks|accessdate=14 May 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20150327042035/http://tanzaniaparks.com/news/japan-prince-visit.html|archivedate=27 Maret 2015|df=dmy-all}}</ref> Mereka menghadiri upacara untuk memperingati 50 tahun berdirinya hubungan diplomatik antara Jepang dan Zambia.
Kiko juga berperan aktif dalam Asosiasi Anti-Tuberkulosis Jepang, Lembaga Bakat Kekaisaran Boshi-Aiiku-kai, Masyarakat Palang Merah Jepang, dan Masyarakat Jepang untuk Promosi Sains.<ref name="unofficialroyalty.com">{{cite web|url=http://www.unofficialroyalty.com/princess-akishino-of-japan/|title=Princess Akishino of Japan|publisher=Unofficial Royalty}}</ref>
