Tally \t(al)-ly\ as a girl's name. Diminutive of Talia (Hebrew) "heaven's dew" or a respelling of Sally.
Tally has 3 variant forms: Tallee, Talley and Tallie.
For more information, see also related names Talicia, Tallulah and Thalia.
Baby names that sound like Tally are Tilly, Tallya and Tully.