"Blend of Rae and Anna"
The name Raeanna is commonly a female name from the "American" origin.
Raeanna is best explained as a modern American combination of the names Rae and Anna, each of which is well established on its own. Rae is used as a Scottish short form of Rachel and is also an English surname, while Anna is the Greek form of the Hebrew Hannah. The name first appears in United States birth records in 1941, which fits a twentieth-century American formation rather than an older inherited name.
The pronunciation of Raeanna is ray-AN-uh.