Where is the largest island in Japan?

Island ranking of Japan

This ranking removes Honshu, Hokkaido, Kyushu, and Shikoku.

Where is the largest island in Japan?
The biggest island in Japan is Etorofu in Hokkaido. The area is 3182.7 km2. The 2nd place is the Kunashiri in Hokkaido. The 3rd place is the Okinawa island in Okinawa Prefecture.

Incidentally, there are 6852 islands in Japan.

Island ranking of Japan (area ranking)
Ranking	Island	Area (km2)	Place
1	Etorofu	3182.7	Hokkaido
2	Kunashiri	1498.6	Hokkaido
3	Okinawa island	1207.9	Okinawa
4	Sado Island	854.5	Niigata
5	Amami Oshima	712.5	Kagoshima
6	Tsushima	696.5	Nagasaki
7	Awaji island	592.3	Hyogo
8	Amakusashimo island	574.2	Kumamoto
9	Yaku Islands	504.9	Kagoshima
10	Tanegashima	445.1	Kagoshima
11	Fukue island	326.4	nagasaki
12	Iriomote island	289.3	Okinawa
13	Shikotan	250.2	Hokkaido
14	Tokunoshima	247.8	Kagoshima
15	dougo	241.6	Shimane
16	amakusakami island	225.4	Kumamoto
17	Ishigaki Island	222.6	Okinawa
18	Rishiri island	182.2	Hokkaido
19	nakadori island	168.4	Nagasaki
20	Hirato island	163.7	Nagasaki
21	Miyako island	159.3	Okinawa
22	shodo island	153.3	Kagawa
23	Okushiri island	142.7	Hokkaido
24	Iki island	133.9	Nagasaki
25	Yashiro island	128.4	Yamaguchi
26	Okierabu island	93.7	Kagoshima
27	Eta island and the Nomi island	91.5	Hiroshima
28	Oshima	91.1	Tokyo
29	Nagashima	90.6	Kagoshima
30	Rebun island	81	Hokkaido
31	kakeroma island	77.4	Kagoshima
32	Kurahashi island	69.6	Hiroshima
33	Hachijo Island	69.5	Tokyo
34	Shimokoshiki island	66.1	Kagoshima
35	Omi island	64.6	Ehime
36	shibotsu	59.5	Hokkaido
37	Kume island	59.1	Okinawa
38	Kikai island	56.9	Kagoshima
39	Nishino island	55.9	Shimane
40	Miyake island	55.4	Tokyo
Data Ministry of Land, Infrastructure, Transport and Tourism