Sina \s(i)-na\ as a girl's name is a variant of Seema (Hebrew, Aramaic), Sheena (Irish) and Sinead (Irish, Hebrew), and the meaning of Sina is "treasure; God is gracious".

The baby name Sina sounds like Sana, Sena, Siana, Sine, Siena, Signa and Zina. Other similar baby names are Mina, Lina, Dina, Aina, Vina, Nina, Tina, Bina, Rina, Stina, Gina, Fina, Jina, Kina, Sima and Wina.