Latin spelling of the Greek name Αχιλλευς (Achilleus) of unknown, possibly pre-Greek, origin. Theories include:
1) Connected to the name of the River Akheloös 
2) From Greek αχος (achos) = 'pain, distress' 
3) From Greek a- = 'without' and kheilea = 'lips' 
Achilles is the son of the sea nymph Thetis and the mortal Peleus. He was the leading warrior of the Greek army attacking Troy. He withdrew from the siege as a result of a slight to his honour, until his lover Patroclus was killed wearing his armour, whereupon he rejoined the fray in order to avenge him.
|Female ♀||Male ♂|
|#: count of main first name only|
|&: count of both main and additional first names|
| Name counts are approximate as statistics normally is not published
for names given to less than 3 or 5 persons per country.
No recent statistics trend found in databases for Achilles.