Arsinoe I (305 BCE; after c. 248 BCE) is a Greek Princess who is of Macedonian and Thessalian descent.
She is the second daughter and youngest child born to the diadochus who was King of Thrace, Asia Minor and Macedonia, Lysimachus, from his first wife the Queen consort, Nicaea of Macedon.
Arsinoe I has two older siblings: a brother called Agathocles and a sister called Eurydice.
