Astronism in South Korea refers to the presence of the Astronist religion in the Republic of Korea, as part of the worldwide Astronist Institution.

Astronism in South Ossetia refers to the presence of the Astronist religion in the Republic of South Ossetia, as part of the worldwide Astronist Institution.

Astronism in South Sudan refers to the presence of the Astronist religion in the Republic of South Sudan, as part of the worldwide Astronist Institution.

Astronism in Southeast Asia is the presence of the Astronist religion in various countries including Indonesia, Thailand, the Philippines, Malaysia, Myanmar, and Vietnam among others, as part of the worldwide Astronist Institution.

Astronism in Southern Africa is the presence of the Astronist religion in countries in Southern Africa, including South Africa itself, Botswana, Eswatini, Lesotho, and Namibia, as part of the worldwide Astronist Institution.

Astronism in Southern Europe is the presence of the Astronist religion in the countries of Southern Europe, namely including Spain, Italy, Greece, Portugal and in various smaller states, as part of the worldwide Astronist Institution.

Astronism in Spain refers to the presence of the Astronist religion in the Kingdom of Spain, as part of the worldwide Astronist Institution.

Astronism in Sri Lanka refers to the presence of the Astronist religion in the Democratic Socialist Republic of Sri Lanka, as part of the worldwide Astronist Institution.

Astronism in Sudan refers to the presence of the Astronist religion in the Republic of the Sudan, as part of the worldwide Astronist Institution.

Astronism in Suriname refers to the presence of the Astronist religion in the Republic of Suriname, as part of the worldwide Astronist Institution.