The name Shura is a boy's name of Russian origin meaning "defending men". Shura and discussed in our forums with posts like "Hunt for our favourite boy names (Alphabet-wise)".
From the experts:
Shura is a unisex Russian nickname for Aleksandr or Aleksandra, themselves forms of Alexander. Less known in the English=speaking world than Sasha, it's also more assertive -- probably because of that "sure" sound.