What ethnicity is the name rashid?

The boy's name Rashid \r(a)-shidh\ is pronounced

rah-SHID OR raa-CHED [as in Shed but D is ALWAYS soft i.e. dh ]

It is of Arabic origin, and its meaning is "rightly guided". Very common Muslim Name all over the world but most common in Middle East, India and Pakistan

Rashida is used for girls.