Lisbon
wiktionary
From Latin Olisīpō, the origin of which is uncertain. [1] Older spellings include Ulixbona and Ulixbuna (in the Visigothic era); Ὀλισσιπών(Olissipṓn) or Ὀλισσιπόνα(Olissipóna) (by Greek writers), Olisippo (by Pliny the Elder), and Ulyssippo (by Pomponius Mela of Hispania), the last of which relates to the first-century Roman folk etymology that it was founded by and named after Ulysses; another common folk etymology is the Phoenician 𐤏𐤋𐤉𐤑 𐤏𐤁𐤀 (ʿlyṣ ʿbʾ/ʿaliṣ-ʿuboʾ/, “safe harbour”).
Another possibility, based on hydronomy of the area, derives the name from a pre-Roman substrate of Iberia's appellation for the Tagus, Lisso or Lucio.
etymonline
Lisbon
capital of Portugal, Portuguese Lisboa, perhaps from a Phoenician word; the derivation from Ulysses probably is folk-etymology.