Year 134 (CXXXIV) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Ursus and Varus (or, less frequently, year 887 Ab urbe condita). The denomination 134 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

• A law improving the lot of free workers is passed in Rome.
• Arrianus, Roman governor of Cappadocia, repulses an attack of the Alani, a nomadic tribe from southeastern Russia.
• Summer – Sextus Julius Severus, Roman governor of Judea, begins a campaign against the Jewish rebel strongholds in the mountains.
• The Romans retake Jerusalem. The largely-destroyed city is renamed Aelia Capitolina.

• Ilseong becomes ruler of the Korean kingdom of Silla.^[1]

• Hadrian's Villa in Tivoli, Italy, is completed.

• Dong Zhuo, Chinese general and warlord (d. 192)
• Marcus Macrinius Avitus Catonius Vindex, Roman politician (d. 176)

• Jima of Silla (or Jima Isageum), Korean ruler of Silla^[1]