User:The Transhumanist/Lists by country/Water supply and sanitation in x
- Outline of Abkhazia
- Outline of Afghanistan
- Outline of Akrotiri and Dhekelia
- Outline of Albania
- Outline of Algeria
- Outline of American Samoa
- Outline of Andorra
- Outline of Angola
- Outline of Anguilla
- Outline of Antigua and Barbuda
- Outline of Armenia
- Outline of Aruba
- Outline of Ascension Island
- Outline of Austria
- Outline of Azerbaijan
- Outline of Bahrain
- Outline of Barbados
- Outline of Belarus
- Outline of Belize
- Outline of Bermuda
- Outline of Bhutan
- Outline of Bosnia and Herzegovina
- Outline of Botswana
- Outline of Brunei
- Outline of Bulgaria
- Outline of Burma
- Outline of Burundi
- Outline of Cambodia
- Outline of Cameroon
- Outline of Cape Verde
- Outline of Chad
- Outline of Christmas Island
- Outline of Comoros
- Outline of Croatia
- Outline of Cyprus
- Outline of Côte d'Ivoire
- Outline of Djibouti
- Outline of Dominica
- Outline of East Timor
- Outline of Equatorial Guinea
- Outline of Eritrea
- Outline of Estonia
- Outline of Fiji
- Outline of Finland
- Outline of French Polynesia
- Outline of Gabon
- Outline of Gambia
- Outline of Georgia (country)
- Outline of Gibraltar
- Outline of Greenland
- Outline of Grenada
- Outline of Guam
- Outline of Guernsey
- Outline of Guinea
- Outline of Guinea-Bissau
- Outline of Hungary
- Outline of Iceland
- Outline of Jersey
- Outline of Kazakhstan
- Outline of Kiribati
- Outline of Kosovo
- Outline of Kuwait
- Outline of Kyrgyzstan
- Outline of Laos
- Outline of Latvia
- Outline of Lesotho
- Outline of Liberia
- Outline of Libya
- Outline of Liechtenstein
- Outline of Lithuania
- Outline of Luxembourg
- Outline of Macau
- Outline of Macedonia
- Outline of Madagascar
- Outline of Malawi
- Outline of Maldives
- Outline of Mali
- Outline of Malta
- Outline of Mauritania
- Outline of Mauritius
- Outline of Mayotte
- Outline of Micronesia
- Outline of Moldova
- Outline of Monaco
- Outline of Mongolia
- Outline of Montenegro
- Outline of Montserrat
- Outline of Nagorno-Karabakh
- Outline of Nauru
- Outline of Nepal
- Outline of New Caledonia
- Outline of Niger
- Outline of Niue
- Outline of Norfolk Island
- Outline of North Korea
- Outline of Northern Cyprus
- Outline of Norway
- Outline of Oman
- Outline of Palau
- Outline of Papua New Guinea
- Outline of Poland
- Outline of Puerto Rico
- Outline of Qatar
- Outline of Romania
- Outline of Saint Barthélemy
- Outline of Saint Helena
- Outline of Saint Kitts and Nevis
- Outline of Saint Lucia
- Outline of Saint Martin
- Outline of Saint Pierre and Miquelon
- Outline of Saint Vincent and the Grenadines
- Outline of Samoa
- Outline of San Marino
- Outline of Serbia
- Outline of Seychelles
- Outline of Sierra Leone
- Outline of Slovakia
- Outline of Slovenia
- Outline of Somalia
- Outline of Somaliland
- Outline of South Korea
- Outline of Sri Lanka
- Outline of Sudan
- Outline of Suriname
- Outline of Svalbard
- Outline of Swaziland
- Outline of Sweden
- Outline of Switzerland
- Outline of São Tomé and Príncipe
- Outline of Taiwan
- Outline of Tajikistan
- Outline of Thailand
- Outline of Tibet
- Outline of Togo
- Outline of Tokelau
- Outline of Tonga
- Outline of Transnistria
- Outline of Tristan da Cunha
- Outline of Turkmenistan
- Outline of Tuvalu
- Outline of Ukraine
- Outline of Uzbekistan
- Outline of Vanuatu
- Outline of Vatican City
- Outline of Vietnam
- Outline of Wallis and Futuna
- Outline of Western Sahara
- Outline of Zimbabwe
- Outline of the Bahamas
- Outline of the British Virgin Islands
- Outline of the Cayman Islands
- Outline of the Central African Republic
- Outline of the Cocos (Keeling) Islands
- Outline of the Cook Islands
- Outline of the Czech Republic
- Outline of the Democratic Republic of the Congo
- Outline of the Falkland Islands
- Outline of the Faroe Islands
- Outline of the Isle of Man
- Outline of the Marshall Islands
- Outline of the Netherlands Antilles
- Outline of the Northern Mariana Islands
- Outline of the Pitcairn Islands
- Outline of the Republic of the Congo
- Outline of the Sahrawi Arab Democratic Republic
- Outline of the Solomon Islands
- Outline of the Turks and Caicos Islands
- Outline of the United Arab Emirates
- Outline of the United States Virgin Islands
- Outline of Åland