Robert "Puiu" Cosmoc (1931 – 11 December 1997) was a Romanian professional footballer who played as a midfielder for Flacăra Ploiești and Jiul Petroșani. After retirement, Cosmoc was a respectable football manager, managing for years in the Divizia A and obtaining notable results with clubs such as: Farul Constanța, Bihor Oradea, Progresul Brăila, CSM Suceava or Rapid București. Cosmoc was also the assistant manager of the Romania national football team in the tenure of Valentin Stănescu.