#Armstrong
- Armstrong — A proper surname of Anglo-Saxon origin borne by prominent historical figures, most notably Neil Alden Armstrong (1930–2012), the American astronaut who became the first person to walk on the Moon during the Apollo 11 mission in July 1969. Etymologically, it literally translates to 'strong arm'.
- Armstrongite — A rare silicate mineral (hydrated calcium zirconium silicate, formula CaZrSi6O15·3H2O) characterized by monoclinic translucent crystals, light to reddish brown color, and vitreous luster. Discovered in the Khan Bogd massif in the Gobi Desert (Mongolia).