Louth

• Hundred of Louth, a cadastral unit in South Australia
• Louth, New South Wales, a town
• Louth Bay, a bay in South Australia
• Louth Bay, South Australia, a town and locality

• Louth, Ontario

• County Louth, Ireland
• Louth GAA, a Gaelic games association
• Louth county football team
• Louth, County Louth, a village in the heart of the county Louth
• County Louth Historic Names, Listing of historically documented names for Louth, village & county
• County Louth (Parliament of Ireland constituency) (1692–1801)
• County Louth (UK Parliament constituency) (1801–1885, 1918–1922), Ireland
• North Louth (UK Parliament constituency) (1885–1918)
• South Louth (UK Parliament constituency) (1885–1918)
• Louth (Dáil constituency), Ireland (since 1923)

• Louth, Lincolnshire, England
• Louth, Lincolnshire (UK Parliament constituency) (1885–1983), in England

• Louth (crater), a crater on Mars

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