Mazyr Raion, Mazyrski Raion ({{lang-be|Мазырскі раён}}) is an administrative subdivision, a raion of Gomel Region, in Belarus.

• 2nd Regiment New York Mounted Rifles
• 2nd Regiment of Grochow Uhlans
• 2nd Regiment of Riflemen (United States)
• 2nd Regiment Oregon United States Volunteer Infantry
• 2nd Regiment, Oregon U.S. Volunteer Infantry
• 2nd Regiment, Oregon U.S. Volunteers
• 2nd Regiment, Royal Artillery
• 2nd Regiment Royal Artillery
• 2nd Regiment South Carolina Cavalry
• 2nd Regiment South Carolina Volunteer Infantry (African Descent)
• 2nd Renfrewshire Battery, Royal Field Artillery
• 2nd Reserve Division (People's Republic of China)
• 2nd Revolution
• 2nd RFF awards
• 2nd RHB-The Straits Times National Spelling Championship
• 2nd Riga Forest Cemetery
• 2nd ring road
• 2nd Rojdenstvenskoe
• 2nd Rome
• 2nd (Rosneath) Dumbartonshire Artillery Volunteer Corps
• 2nd Rossoshinskiy
• 2nd Rowan County Regiment
• 2nd Royal Fusiliers
• 2nd Rugby-Bundesliga
• 2nd Saeima