Cosmo the Space-dog (Russian: Космо, romanized: Kosmo) is a character appearing in American comic books published by Marvel Comics. Cosmo, a telepathic Soviet space dog, is the security chief of the space station Knowhere and a member of the Guardians Of The Galaxy. The character was created by Dan Abnett and Andy Lanning as a reference to Laika (a Soviet space dog who was one of the first animals in space and the first to orbit the Earth).
A female version of Cosmo the Spacedog appeared in a cameo role in the Marvel Cinematic Universe films Guardians of the Galaxy (2014) and Guardians Of The Galaxy Vol. 2 (2017), as well as in the Disney+ animated series What If...? (2021). She is voiced by Maria Bakalova in The Guardians of the Galaxy Holiday Special (2022) and Guardians Of The Galaxy Vol. 3 (2023).