Ja
- Jaina, Campeche, Mexico
- Jaipur, Rajasthan, India
- Jaisalmer, Rajasthan, India
- Jakarta, Java, Indonesia
- Jalajala, Laguna, Philippines
- Jalieza, Santo Tomas, Mexico
- Jalisco, Mexico
- Jamaica
- Jambi, Indonesia
- James Bay, Canada
- Jamestown Bay, Sitka Harbor, Baranof Island, Sitka Borough, Alaska, USA
- Jammu-Kashmir, India
- Jamshedpur, Bihar, India
- Japan
- Japonski Island, Sitka, Baranof Island, Sitka Borough, Alaska, USA
- Japonski Island, Sitka Borough, Alaska, USA
- Jau Mishash El Hadi 1, Saudi Arabia
- Jau Mishash El Hadi 2, Saudi Arabia
- Java, Indonesia
- Jaynagar, West Bengal, India
Je
- Jefferson County, Washington state, USA
- Jemez Pueblo, New Mexico, USA
- Jequetopeque, La Libertad Region, Peru
- Jequetopeque, Peru
- Jerbar, Sudan
- Jericho, British Columbia, Canada
- Jericho Beach, British Columbia, Canada
- Jerusalem, Israel
- Jervis Inlet, British Columbia, Canada
- Jess Property, British Columbia, Canada
JhJi
- Jiangsu, China
- Jiangxi, China
- Jianhe, Guizhou, China
- Jinan, Shandong, China
- Jingdezhen, Jiangxi, China
- Jingzhou, Hubei, China
- Jinjiang, Jiangxi, China
- Jizhou, Zhili, China
Jo
- Jodhpur, Rajasthan, India
- Johannesburg, South Africa
- Johnstone Strait, British Columbia, Canada
- Jolo Island, Philippines
- Jomon, Japan
- Joranda, Odisha, India
- Joranda, Orissa, India
- Jordan
Jp
- JP I, Ica Valley, Peru
- JP II, Ica Valley, Peru
Ju
- Juan de Fuca, British Columbia, Canada
- Juan Dolio, San Pedro de Marcoris, Dominican Republic
- Juan Pablo, Peru
- Juana, Indonesia
- Juazeiro, Bahia, Brazil
- Juchitan, Oaxaca, Mexico
- Juli, Puno, Peru
- Juliaca, Puno, Peru
- Jullananaab, Greenland
- Jumoniji-Machi, Akita, Japan
- Juneau, Alaska, USA
- Juneau, Juneau Borough, Alaska, USA
- Juneau, Juneau Division, Alaska, USA
- Juneau Borough, Alaska, USA
- Juneau Division, Alaska, USA
- Junin, Peru
K.
- K.'Aga, British Columbia, Canada
Ka
- Kabul, Afghanistan
- Kachin, Peru
- Kaesong, Korea
- Kagawa, Japan
- KagisaalujuaNothern Quebec, Canada
- Kagmallirk, Branch Of Colville River, North Slope Borough, Alaska, USA
- Kagoshima, Japan
- Kahnawake, Quebec, Canada
- Kaifeng, Henan, China
- Kaiping, Guangdong, China
- Kaitaia, New Zealand
- Kajiado, Kenya
- Kajiki, Japan
- Kake, Alaska, USA
- Kake, Kupreanof Island, Alaska, USA
- Kake Satee, Alaska, USA
- Kake Satee, Sitka, Baranof Island, Sitka Borough, Alaska, USA
- Kake Satee, Sitka Bay, Baranof Island, Sitka Borough, Alaska, USA
- Kalaw, Burma
- Kalaw, Mandalay, Burma
- Kalimantan, Indonesia
- Kalimpong, West Bengal, India
- Kalispell, Montana, USA
- Kalugwis, British Columbia, Canada
- Kalugwis, Turnour Island, British Columbia, Canada
- Kalutara, Sri Lanka
- Kamakura, Kanagawa, Japan
- Kamanboa, Japan
- Kamba, Kenya
- Kambot, East Sepik, Papua New Guinea
- Kamchatka, Russia
- Kameng, Arunachal Pradesh, India
- Kamigo, Niigata, Japan
- Kamikawa-Mura, Niigata, Japan