Muscovy or Moscovia (Russian: Московия, romanized: Moskoviya) is:

• a Latin name of Moscow
• an alternate name of the Grand Principality of Moscow (1263–1547).
• an alternate name of the Tsardom of Russia (1547–1721).

Variations include Muscovia, Muskovia, and Moscovy.

The name may also refer to:

• Muscovy Company, an English trading company chartered in 1555
• Muscovy duck (Cairina moschata)
• Domestic Muscovy duck (Cairina moschata domestica)
• Moscovia (region), a historical region in central Russia
• Muscovy glass, or muscovite, a mineral
• Muscovy, a fictional "parallel world" Russia in Phillip Pullman's His Dark Materials

• All pages with titles containing Muscovy
• All pages with titles containing Moscovia
• All pages with titles containing Muscovia
• Moskovia Airlines, a defunct Russian airline
• Moscobia Convent, a convent established by the Russian Orthodox Church in Ein Karem
• Moskal, a designation used for the residents of the Grand Duchy of Moscow and Russia, currently an ethnic slur