The name Marianna is a girl's name of Spanish origin. Marianna is ranked #749 on our popularity charts and is often added to lists like Names to Substitute for Samantha and discussed in our forums with posts like "Picky Parents BNG".
From the experts:
While Marianna looks like a spelling variation of Mariana, the two names have different etymologies. Marianna was on and off the US Top 1000 list throughout the twentieth century, and it has now ranked consistently since 1995. While it has never appeared in the upper half of the US popularity charts, it's a very popular choice in Italy and Poland.