Otto Olsen (sport shooter)
[ar] أوتو أولسن
[ca] Otto Olsen
[de] Otto Olsen (Sportschütze)
[fa] آتو لسن
[fr] Otto Olsen
[he] אוטו אולסן
[it] Otto Olsen
[nl] Otto Olsen
[nb] Otto Olsen
[pl] Otto Olsen (strzelec)