Shanna \sh(an)-na\ as a girl's name is a variant of Shana, Shannon (Gaelic), Shawna (English) and Susannah (Hebrew), and the meaning of Shanna is "old, ancient; lily".

The baby name Shanna sounds like Channa, Shannae, Shaina, Shayna, Shaena, Shannah, Shania, Shannea, Shanea, Sianna, Shonna, Shawnna, Shaunna, Shauna, Shyanna and Shianna. Other similar baby names are Shanda, Sanna, Seanna, Shanta and Shannan.