Seleucus IV Philopator ("father lover"): name of a Seleucid king, ruled from 187 to 175.
Successor of: Antiochus III the Great
- Father: Antiochus III the Great
- Mother: Laodice III (daughter of Mithradates II of Pontus)
- Wife: his sister (?) Laodice IV
- Born after 220
- 196: Thrace added to the Seleucid Empire; Seleucus is governor
- 192-188: Syrian War between the Seleucids and Rome.
- 190: Seleucus besieges Rome's ally Pergamon, captures the Roman commander Lucius Cornelius Scipio, takes part in the Battle of Magnesia (Roman victory)
- 189: Co-ruler of his father
- 188: Peace of Apamea; Seleucid empire has to abandon all land north of the Taurus and pay an indemnity
- 3 July 187: death of Antiochus III; Seleucus becomes king and tries to restore the Seleucid Empire by diplomatic means
- 178: Marries his daughter Laodice V to the Macedonian king Perseus, which is regarded by king Eumenes II Soter of Pergamon as an anti-Roman act; Seleucus has to send his son Demetrius as hostage to Rome; in return, his brother Antiochus returns
- 175: To pay the Roman indemnity, Seleucus orders his commander Heliodorus to obtain money in the temple of Jerusalem, but he encounters opposition. Heliodorus returns.
- 3 September 175: Heliodorus kills Seleucus; his wife Laodice V appears to have married Antiochus IV Epiphanes, who succeeds his brother
Succeeded by: his brother Antiochus IV Epiphanes