Saxe-Coburg and Gotha or Saxe-Coburg-Gotha (German: Sachsen-Coburg und Gotha) served as the name of the two German duchies of Saxe-Coburg and Saxe-Gotha in Germany, in the present-day states of Bavaria and Thuringia, which were in personal union between 1826 and 1918.

The name Saxe-Coburg-Gotha may also refer to the family of the ruling House of Saxe-Coburg and Gotha. This family played many and varied roles in 19th-century European dynastic and political history.