100%RatingSave Gender Masculine Usage Scottish Gaelic [1] Pronounced Pron. LAKH-lən [key·IPA] Meaning & HistoryExpand Links Scottish Gaelic form of Lochlainn. Related NamesFamily Tree·Details VariantsLachlan, LauchlanDiminutiveLachieOther Languages & CulturesLachlan, Lockie(English) Lochlainn, Lochlann(Irish) Lochlainn(Old Irish) Categories earth, nationalities, nature, water Sources & References Mark, Colin. The Gaelic-English Dictionary. Routledge, 2003, page 715.