Melania Black (née Macmillan) (fl. 1925-1929) was a pure-blood witch married to Arcturus Black III. The couple had two children, Lucretia and Orion Black. She was Sirius and Regulus Black's paternal grandmother. She may have been related to Ernie Macmillan.
Melania is the Italian, Spanish or Polish version of the name Melanie, which is derived from the Greek melaina, meaning "black, dark".
- Harry Potter and the Order of the Phoenix (film) (Appears on the Black family tree tapestry)