Guido Ubaldo Abbatini (1600 – 1656) was an Italian painter of the Baroque period, active mainly in Rome and Usigni.

Guido Ubaldo Abbatini was a pupil of the painter Giuseppe Cesari and of Gian Lorenzo Bernini, and later worked under Pietro da Cortona. He frequently painted in fresco. He was born in Città di Castello and died in Rome. He also painted the ceiling of the Cornaro chapel of Santa Theresa in Santa Maria della Vittoria, Rome.

• Ticozzi, Stefano (1830). Dizionario degli architetti, scultori, pittori, intagliatori in rame ed in pietra, coniatori di medaglie, musaicisti, niellatori, intarsiatori d'ogni etá e d'ogni nazione' (Volume 1). Milan: Gaetano Schiepatti. p. 18.
• Bryan, Michael (1886). Robert Edmund Graves (ed.). Dictionary of Painters and Engravers, Biographical and Critical. Vol. I A-K. London: George Bell and Sons. p. 2.

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