Death on the Tiber is a historical novel by British writer Lindsey Davis, the twelfth in her Flavia Albia series. It is to be published in the UK on 4 April 2024 by Hodder & Stoughton (ISBN 978-1399719612)^[1] and in the United States on 23 July 2024 by Minotaur Books (ISBN 978-1250799906).^[2]

Davis has said that the plot involves a corpse dredged out of the Tiber, the "ever-warring gangster community", "the failings of the various public bodies who are supposed to tackle crime and threats to the community" and "a very elaborate joke about crime writing".^[3]

The cover of the first UK hardback edition shows a barnacle-encrusted vase on a river-bed with blood flowing out of it.^[1] The cover of the first American edition shows a woman looking over the Tiber.^[2]

The book is set in Rome and Ostia in AD 90.^[4]: xi The list of characters includes Marcus Didio Falco ("one-time hero; has he still got it?") and Helena Justina ("his wife, an absoluter heroine") from the Falco series, vigiles from seven cohorts, and members of five underworld gangs.^{[4]: xiii–xvii}

The book refers to events from Davis's earlier book The Jupiter Myth.