Sergei D. Odintsov (born 1959, Shchuchinsk, Kazakhstan, Kokchetav Oblast) is a Russian astrophysicist active in the fields of cosmology, quantum field theory and quantum gravity. Odintsov is an ICREA Research Professor at the Institut de Ciències de l'Espai (Barcelona) since 2003. He also collaborates as group leader at research projects of the Tomsk State Pedagogical University. He is editor-in-chief of Symmetry, and is a member of the editorial boards of , International Journal of Geometric Methods in Modern Physics, International Journal of Modern Physics D, , Universe, and the . Odintsov also is an advisory panel member of Classical and Quantum Gravity.