An Astrologer's Day is a thriller, suspense short story by author R. K. Narayan. While it had been published earlier, it was the titular story of Narayan's fourth collection of short stories published in 1947 by Indian Thought Publications. It was the first chapter of the world famous collection of stories Malgudi Days which was later telecasted on television in 2006.Fallon and et al. described the work as "a model of economy without leaving out the relevant detail." Themes found in An Astrologer's Day recur frequently throughout Narayan's work. The story was adapted into a 2019 Kannada movie Gara.