Apollodorus of Damascus is a Greek engineer, architect, designer and sculptor who flourishes during the 2nd century CE, from Damascus, Roman Syria.

He is a favorite of Trajan, for whom he constructs Trajan's Bridge over the Danube for the 105-106 campaign in Dacia.

He also designs the Forum Trajanum and Trajan's Column within the city of Rome, beside several smaller projects.

Apollodorus also designs the triumphal arches of Trajan at Beneventum and Ancona.

He is also widely credited as the architect of the Pantheon, and cited as the builder of the Alconétar Bridge in Spain.

In 106 he also completes or restored the odeon begun in the Campus Martius under Domitian.

Trajan's Column, in the center of the Forum, is celebrated as being the first triumphal monument of its kind.

On the accession of Hadrian, whom he had offended by ridiculing his performances as architect and artist, Apollodorus is banished and, shortly afterwards, being charged with imaginary crimes, put to death.

He also writes a treatise on Siege Engines, which is dedicated to Hadrian.

The story about Apollodorus' death demonstrates the persistent hostility felt towards Hadrian in senatorial circles long after his reign, for if Cassius Dio included it in his history, he must have believed it.

Many since have taken Dio's anecdote at face value, but there is much in this story that does not add up and many scholars dismiss its historicity altogether.