"Blend of Shawn and Sandra"
The name Shawndra is commonly a female name.
Shawndra is a modern American formation rather than an inherited name. Its form joins Shawn, the anglicized spelling of Irish Sean, with the -dra ending found in Sandra and Shandra. United States birth records first show this spelling in 1962.
The pronunciation of Shawndra is SHAWN-druh.