List of Augustae
Augusta was a Roman imperial honorific title given to empresses and women of the imperial families. It was the feminine form of Augustus. In the third century, could also receive the titles of , , and .
The title implied the greatest prestige. could issue their own coinage, wear imperial regalia, and rule their own courts.
Agrippina, the wife of Claudius, was the first living wife of the emperor in Roman history to receive the title of, a position she held for the rest of her life, ruling with her husband and son.
In the third century, Julia Domna was the first empress to receive the combined title after the death of her husband Septimius Severus, which may have implied greater powers being vested in her than was usual for a Roman empress mother. In this official position and honor, she accompanied her son on an extensive military campaign and provincial tour.
Principate period
Julio-Claudian dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Livia | 30 January 58 BC | AD 14 | Wife of Emperor Augustus and mother of Emperor Tiberius. | 28 September AD 29 | |
| Antonia Minor | 31 January 36 BC Athens | AD 41 | Mother of Emperor Claudius. | AD 37 Rome | |
| Agrippina the Younger | 7 November AD 15 Oppidum Ubiorum | AD 50 | Wife of Emperor Claudius and mother of Emperor Nero | 23 March AD 59 Misenum | |
| Poppaea Sabina | AD 30 Pompeii | AD 63 | Wife of Emperor Nero. | AD 65 Rome | |
| Claudia Augusta | 21 January AD 63 Antium | AD 63 | Daughter of Emperor Nero. | April AD 63 |
Flavian dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Domitilla the Younger | 45 | Before 80 | Daughter of Emperor Vespasian. | 66 | |
| Domitia Longina | 50 | 80 | Wife of Emperor Domitian. | After 120 |
Nerva–Antonine dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Pompeia Plotina | 54–68 | 105 | Wife of Emperor Trajan. | 123 | |
| Ulpia Marciana | 48 | 105 | Sister of Emperor Trajan. | 112–114 | |
| Salonia Matidia | 4 July 68 | 112 | Niece of Emperor Trajan. | 23 December 119 | |
| Vibia Sabina | 13 August 83 | 128 | Wife of Emperor Hadrian. | 136–137 | |
| Faustina the Elder | 21 September 100 | 138 | Wife of Emperor Antoninus Pius. | 140 | |
| Faustina the Younger | 125–130 | 1 December 147 | Daughter of Emperor Antoninus Pius; wife of Emperor Marcus Aurelius; mother of Emperor Commodus. | 175 | |
| Lucilla | 148–150 | 164 | Daughter of Emperor Marcus Aurelius and wife of Emperor Lucius Verus. | 182 | |
| Bruttia Crispina | 164 Rome | 177 | Wife of Emperor Commodus. | 191 Capri |
Year of the Five Emperors
| Portrait | Name | Birth | Date of naming | Description | Death |
| Manlia Scantilla | 193 | Wife of Emperor Didius Julianus. | 193 | ||
| Didia Clara | 153 Rome | 193 | Daughter of Emperor Didius Julianus. | Unknown |
Severan dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Julia Domna | Wife of Emperor Septimius Severus. | 217 | |||
| Fulvia Plautilla | 185—189 | 210s | Wife of Emperor Caracalla. | 212 | |
| Julia Cornelia Paula | 219 | First wife of Emperor Elagabalus. | |||
| Aquilia Severa | 220 | Second and fourth wife of Emperor Elagabalus. As a Vestal Virgin her marriage to the Emperor was very controversial. | |||
| Julia Avita Mamaea | 180 | 222 | Mother of Emperor Alexander Severus and co-regent, in his name, during his adolescence. | 235 | |
| Sallustia Orbiana | 225 | Wife of Emperor Alexander Severus. |
Crisis of the Third Century
| Portrait | Name | Birth | Date of naming | Description | Death |
| Tranquillina | c. 225 | 241 | Wife of Emperor Gordian III. | After 244 | |
| Marcia Otacilia Severa | 240s | Wife of the Emperor Philip the Arab. | |||
| Herennia Etruscilla | Unknown | September 249 | Wife of Emperor Trajan Decius; mother of Emperor Herennius Etruscus and Emperor Hostilian. | 253 | |
| Cornelia Supera | 253 | Wife of Aemilianus. | |||
| Cornelia Salonina | Unknown | 253 | Wife of Emperor Gallienus. | 268 | |
| Sulpicia Dryantilla | c. 260 | Wife of usurper Emperor Regalianus, who named her as part of legitimizing his claim. | 260 | ||
| Victoria | 271 | Mother of Victorinus | 271 | ||
| Zenobia | 240 | 272 | Queen of the Palmyrene Empire, a short lived splinter empire that revolted during the Crisis. She proclaimed herself and annexed the Eastern Mediterranean from Rome. | c. 275 | |
| Ulpia Severina | 274 | Wife of Emperor Aurelian; possibly reigned in her own right after the death of her husband in 275. | |||
| Magnia Urbica | 283 | Wife of Emperor Carinus. |
Dominate period
Tetrarchy
| Portrait | Name | Birth | Date of naming | Description | Death |
| Galeria Valeria | 308 | Daughter of Emperor Diocletian and wife of Emperor Galerius. | 315 |
Constantinian dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Fausta | 289 | 324 | Wife of Constantine I and daughter of Emperor Maximian. Mother of: Constantina, Constantine II, Constantius II, Constans I and Helena. | 326 | |
| Helena | 246—250 | c.324–325 | Mother of Constantine I and ex-wife or mistress of Emperor Constantius Chlorus. | 18 August 330 | |
| Constantina | 307—317 | After 312, before 337. | Daughter of Emperor Constantine I. Wife of Hannibalianus, Rex Regum et Ponticarum Gentium, "King of Kings and of the Pontic People". Wife of Caesar Constantius Gallus. | 354 |
Valentinianic dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Galla Placidia | 392 | c. 416 | Daughter of Theodosius I, wife of Constantius III, regent for her son Valentinian III. | 27 November 450 | |
| Justa Grata Honoria | After 426 | Sister of Valentinian III. |
Theodosian dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Aelia Flaccilla | Before 385 | Wife of Emperor Theodosius I. | 386 | ||
| Eudoxia | 9 January 400 | Wife of Emperor Arcadius. | 6 October 404 | ||
| Pulcheria | 19 January 398–399 | 414 | Daughter of Arcadius, sister of Theodosius II, and then wife of Marcian. | July 453 | |
| Eudocia | 401 | 2 January 423 | Wife of Theodosius II | 20 October 460 | |
| Licinia Eudoxia | 422 | 439 | Daughter of Theodosius II, Wife of Valentinian III. | 462 |
Leonid dynasty
| Portrait | Name | Birth | Date of naming | Description | Death |
| Marcia Euphemia | c. 453 | Daughter of Marcian by an unknown woman. Wife of Anthemius. | 472 | ||
| Verina | 457 | Wife of Leo I, sister of Basiliscus, mother of Ariadne and Leontia. | 484 | ||
| Ariadne | before 457 | 474 | Daughter of Leo I. Wife of Zeno. Mother of Leo II. Wife of Anastasius I. | 515 | |
| Zenonis | 475 | Wife of Basiliscus. | 476–477 |