4th Century
| Year | First consul | Second consul |
|---|---|---|
| 301 | T. Flavius Postumius Titianus II | Virius Nepotianus |
| 302 | Flavius Valerius Constantius Caesar IV | C. Galerius Valerius Maximianus Caesar IV |
| 303 | Imp. Caesar C. Aurelius Valerius Diocletianus Augustus VIII | Imp. Caesar M. Aurelius Valerius Maximianus Augustus VII |
| 304 | Imp. Caesar C. Aurelius Valerius Diocletianus Augustus IX | Imp. Caesar M. Aurelius Valerius Maximianus Augustus VIII |
| 305 | Flavius Valerius Constantius Caesar V | C. Galerius Valerius Maximianus Caesar V |
| 306 | Imp. Caesar Flavius Valerius Constantius Augustus VI | Imp. Caesar C. Galerius Valerius Maximianus Augustus VI |
| 307 | Imp. Caesar M. Aurelius Valerius Maximianus Augustus IX (West) | Flavius Valerius Constantinus Caesar (West) |
| Imp. Caesar Flavius Valerius Severus Augustus (East) | Galerius Valerius Maximinus Caesar (East) | |
| Imp. Caesar C. Galerius Valerius Maximianus Augustus VII (Rome; January -April ) | Galerius Valerius Maximinus Caesar (Rome; January -April ) | |
| 308 | C. Aurelius Valerius Diocletianus senior Augustus X | Imp. Caesar C. Galerius Valerius Maximianus Augustus VII |
| Imp. Caesar M. Aurelius Valerius Maxentius Augustus (Rome; April -December ) | Valerius Romulus I (Rome; April -December ) | |
| 309 | Imp. Caesar C. Valerius Licinianus Licinius Augustus | Imp. Caesar Flavius Valerius Constantinus Augustus |
| Imp. Caesar M. Aurelius Valerius Maxentius Augustus II (Rome) | Valerius Romulus II (Rome) | |
| 310 | Tatius Andronicus | Pompeius Probus |
| Imp. Caesar M. Aurelius Valerius Maxentius Augustus III (Rome) | ||
| 311 | Imp. Caesar C. Galerius Valerius Maximianus Augustus VIII | Imp. Caesar Galerius Valerius Maximinus Augustus II |
| C. Caeionius Rufius Volusianus (Rome; from September ) | Aradius Rufinus (Rome; from Sept) | |
| 312 | Imp. Caesar Flavius Valerius Constantinus Augustus II | Imp. Caesar C. Valerius Licinianus Licinius Augustus II |
| Imp. Caesar M. Aurelius Valerius Maxentius Augustus IV (Rome) | ||
| 313 | Imp. Caesar Flavius Valerius Constantinus Augustus III | Imp. Caesar C. Valerius Licinianus Licinius Augustus III |
| Imp. Caesar Galerius Valerius Maximinus Augustus III (Rome, Egypt, inter alios) | ||
| 314 | C. Caeionius Rufius Volusianus II | Petronius Annianus |
| 315 | Imp. Caesar Flavius Valerius Constantinus Augustus IV | Imp. Caesar C. Valerius Licinianus Licinius Augustus IV |
| 316 | Antonius Caecinius Sabinus | Vettius Rufinus |
| 317 | Ovinius Gallicanus | Caesonius Bassus (from February ) |
| 318 | Imp. Caesar C. Valerius Licinianus Licinius Augustus V | Flavius Iulius Crispus Caesar |
| 319 | Imp. Caesar Flavius Valerius Constantinus Augustus V | Valerius Licinianus Licinius Caesar |
| 320 | Imp. Caesar Flavius Valerius Constantinus Augustus VI | Flavius Claudius Constantinus Caesar |
| 321 | Flavius Iulius Crispus Caesar II (West) | Flavius Claudius Constantinus Caesar II (West) |
| Imp. Caesar C. Valerius Licinianus Licinius Augustus VI (East) | Valerius Licinianus Licinius Caesar II (East) | |
| 322 | Petronius Probianus (West) | Amnius Anicius Iulianus (West) |
| Post consulatum Licinii Augusti VI et Licinii Caesaris II (East) | ||
| 323 | Acilius Severus (West) | Vettius Rufinus (West) |
| II post consulatum Licinii Augusti VI et Licinii Caesaris II (East) | ||
| 324 | Flavius Iulius Crispus Caesar III | Flavius Claudius Constantinus Caesar III |
| 325 | Valerius Proculus (to May) | Sex. Anicius Paulinus |
| suff. | Julius Julianus | |
| 326 | Flavius Valerius Constantinus Augustus VII | Flavius Iulius Constantius Caesar |
| 327 | Flavius Constantius | Valerius Maximus |
| 328 | Flavius Ianuarinus | Vettius Iustus |
| 329 | Flavius Valerius Constantinus Augustus VIII | Flavius Claudius Constantinus Caesar IV |
| 330 | Flavius Gallicanus | Aurelius Valerius Tullianus Symmachus |
| 331 | Junius Annius Bassus | Ablabius |
| 332 | Lucius Papius Pacatianus | Maecilius Hilarianus |
| 333 | Flavius Dalmatius | Domitius Zenophilus |
| 334 | Flavius Optatus | Amnius M'. Caesonius Nicomachus Anicius Paulinus Honorius |
| 335 | Iulius Constantius | Caeionius Rufius Albinus |
| 336 | Virius Nepotianus | Tettius Facundus |
| 337 | Flavius Felicianus | Fabius Titianus |
| 338 | Flavius Ursus | Flavius Polemius |
| 339 | Flavius Iulius Constantius Augustus II | Flavius Iulius Claudius Constans Augustus |
| 340 | Septimius Acindynus | L. Aradius Valerius Proculus Populonius |
| 341 | Antonius Marcellinus | Petronius Probinus |
| 342 | Flavius Iulius Constantius Augustus III | Flavius Iulius Claudius Constans Augustus II |
| 343 | M. Maecius Memmius Furius Baburius Caecilianus Placidus | Flavius Romulus |
| 344 | Domitius Leontius (West and East) | Flavius Bonosus (West; until April/May) |
| Iulius Sallustius (East; all year. West; after April /May) | ||
| 345 | Flavius Amantius | M. Nummius Albinus |
| 346 | Flavius Iulius Constantius Augustus IV | Flavius Iulius Claudius Constans Augustus III |
| 347 | Vulcacius Rufinus | Flavius Eusebius |
| 348 | Flavius Philippus | Flavius Salia |
| 349 | Ulpius Limenius | Fabius Aconius Catullinus Philomathius |
| 350 | Flavius Sergius | Flavius Nigrinianus |
| 351 | Flavius Magnus Magnentius Augustus (West) | Gaiso (West) |
| Post consulatum Sergii et Nigriniani (East) | ||
| 352 | Flavius Magnus Decentius Caesar (West) | Paulus (West) |
| Flavius Iulius Constantius Augustus V (East) | Flavius Claudius Constantius Caesar I (East) | |
| 353 | Flavius Iulius Constantius Augustus VI | Flavius Claudius Constantius Caesar II |
| 354 | Flavius Iulius Constantius Augustus VII | Flavius Claudius Constantius Caesar III |
| 355 | Flavius Arbitio | Q. Flavius Maesius Egnatius Lollianus Mavortius |
| 356 | Flavius Iulius Constantius Augustus VIII | Flavius Claudius Iulianus Caesar |
| 357 | Flavius Iulius Constantius Augustus IX | Flavius Claudius Iulianus Caesar II |
| 358 | Censorius Datianus | Neratius Cerealis |
| 359 | Flavius Eusebius | Flavius Hypatius |
| 360 | Flavius Iulius Constantius Augustus X | Flavius Claudius Iulianus Caesar III |
| 361 | Flavius Taurus | Flavius Florentius |
| 362 | Claudius Mamertinus | Flavius Nevitta |
| 363 | Flavius Claudius Iulianus Augustus IV | Flavius Sallustius |
| 364 | Flavius Iovianus Augustus | Varronianus |
| 365 | Flavius Valentinianus Augustus | Flavius Iulius Valens Augustus |
| 366 | Flavius Gratianus | Dagalaifus |
| 367 | Flavius Lupicinus | Flavius Iovinus |
| 368 | Flavius Valentinianus Augustus II | Flavius Iulius Valens Augustus II |
| 369 | Valentinianus Galates | Flavius Victor |
| 370 | Flavius Valentinianus Augustus III | Flavius Iulius Valens Augustus III |
| 371 | Flavius Gratianus Augustus II | Sex. Claudius Petronius Probus |
| 372 | Domitius Modestus | Flavius Arinthaeus |
| 373 | Flavius Valentinianus Augustus IV | Flavius Iulius Valens Augustus IV |
| 374 | Flavius Gratianus Augustus III | Flavius Equitius |
| 375 | Post consulatum Gratiani Augusti III et Equiti | |
| 376 | Flavius Iulius Valens Augustus V | Flavius Valentinianus Iunior Augustus |
| 377 | Flavius Gratianus Augustus IV | Flavius Merobaudes |
| 378 | Flavius Iulius Valens Augustus VI | Flavius Valentinianus Iunior Augustus II |
| 379 | Decimius Magnus Ausonius | Q. Clodius Hermogenianus Olybrius |
| 380 | Flavius Gratianus Augustus V | Flavius Theodosius Augustus |
| 381 | Flavius Syagrius | Flavius Eucherius |
| 382 | Flavius Claudius Antonius | Flavius Afranius Syagrius |
| 383 | Flavius Merobaudes II | Flavius Saturninus |
| 384 | Flavius Ricomer | Flavius Clearchus |
| 385 | Flavius Arcadius Augustus | Flavius Bauto |
| 386 | Flavius Honorius | Flavius Euodius |
| 387 | Flavius Valentinianus Iunior Augustus III | Eutropius |
| 388 | Magnus Maximus Augustus II (West) | No colleague |
| Flavius Theodosius Augustus II (East) | Maternus Cynegius (East) | |
| 389 | Flavius Timasius | Flavius Promotus |
| 390 | Flavius Valentinianus Iunior Augustus IV | Flavius Neoterius |
| 391 | Flavius Eutolmius Tatianus | Q. Aurelius Symmachus |
| 392 | Flavius Arcadius Augustus II | Flavius Rufinus |
| 393 | Flavius Theodosius Augustus II (West and East) | Flavius Eugenius Augustus (West) |
| Flavius Abundantius (East) | ||
| 394 | Virius Nicomachus Flavianus (West) | No colleague |
| Flavius Arcadius Augustus III (East) | Flavius Honorius Augustus II (East) | |
| 395 | Anicius Hermogenianus Olybrius | Anicius Probinus |
| 396 | Flavius Arcadius Augustus IV | Flavius Honorius Augustus III |
| 397 | Flavius Caesarius | Nonius Atticus |
| 398 | Flavius Honorius Augustus IV | Flavius Eutychianus |
| 399 | Eutropius | Flavius Mallius Theodorus |
| 400 | Flavius Stilicho | Aurelianus |
Read more about this topic: List Of Roman Consuls