Satyros or Satyrus, was a ancient Greek architect of the 4th century BC. Along with Pythis, he designed the Mausoleum of Maussollos at Halicarnassus, considered one of the Seven Wonders of the Ancient World.

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Probably another Satyrus worked for Ptolemy II Philadelphus (309-246 BC)

S. Rappoport, History of Egypt:

On the death of Arsinoë, Philadelphus built a tomb for her in Alexandria, called the Arsinoëum, and set up in it an obelisk eighty cubits high, which had been made by King Nectanebo, but had been left plain, without carving.

Satyrus, the architect, had the charge of moving it. He dug a canal to it as it lay upon the ground, and moved two heavily laden barges under it. The burdens were then taken out of the barges, and as they floated higher they raised the obelisk off the ground. He then found it a task as great or greater to set it up in its place; and this Greek engineer must surely have looked back with wonder on the labour and knowledge of mechanics which must have been used in setting up the obelisks, colossal statues, and pyramids, which he saw scattered over the country. This obelisk now ornaments the cathedral of the Popes on the Vatican hill at Rome. Satyrus wrote a treatise on precious stones, and he also carved on them with great skill; but his works are known only in the following lines, which were written by Diodorus on his portrait of Arsinoë cut in crystal:

E'en Zeuxis had been proud to trace
The lines within this pebble seen;
Satyrus here hath carved the face
Of fair Arsinoë, Egypt's queen;
But such her beauty, sweetness, grace,
The copy falls far short, I ween