| Otto mesi in due ore | |
|---|---|
| Opera by Gaetano Donizetti | |
 Original stage setting for act 1, Naples, 1827 | |
| Librettist | Domenico Gilardoni |
| Language | Italian |
| Based on | Elisabeth, ou Les exilés de Sibérie by Sophie Ristaud Cottin |
| Premiere | 13 May 1827 Teatro Nuovo, Naples |
Otto mesi in due ore ossia Gli esiliati in Siberia (Eight Months in Two Hours or The Exiles in Siberia) is an opera in three acts by Gaetano Donizetti to a libretto by Domenico Gilardoni.
The original story comes from the 1806 novel, Elisabeth, ou Les exilés de Sibérie (Elisabeth, or the Exiles of Siberia), written by Sophie Ristaud Cottin. Luigi Marchionni's subsequent play, La figlia dell’esiliato, ossia Otto mesi in due ore (The Daughter of the Exile, or Eight Months in Two Hours), first performed in Italy in 1820, was the more immediate basis for Gilardoni's libretto.
The opera has two later, substantially re-worked versions, Élisabeth ou la fille de l'exilé (Elisabeth, or the daughter of the exile), and Elisabetta, both of which received their first performances some 150 years after Donizetti's death.