Consolatio (Latin: [koːnsoːˈlaːtɪ.oː]; Consolation) is a lost philosophical work written by Marcus Tullius Cicero in the year 45 BC. The work had been written to soothe his grief after the death of his daughter, Tullia, which had occurred in February of the same year. Not much is known about the work, although it seems to have been inspired by the Greek philosopher Crantor's ancient work De Luctu ("On Grief"), and its structure was probably similar to a series of letter correspondences between Servius Sulpicius Rufus and Cicero.
Fragments of the work survive, having been quoted by Lactantius, and Jerome makes note of the work in a consolatory letter to Heliodorus of Altino. A popular piece of writing until its loss, the Consolatio is widely accepted as the distinct work that transmitted the earlier consolatio literary tradition to the Romans of the late Republic. In 1583, Italian scholar Carlo Sigonio claimed to have discovered a non-fragmentary version of the Consolatio, although most scholars now agree that this work was a fake, with modern stylometric methods backing this up. This Renaissance work, now known as the pseudo-Ciceronian Consolatio, does survive.