Valley or small valley
Dalana is likely a modern elaboration of the name Dale or a variation of the Germanic name Adalana. It combines the soft, nature-inspired 'Dale' with the popular feminine suffix '-ana'. In some contexts, it is viewed as a rhythmic American coinage blending elements of names like Lana and Dana.
Less common today
Dalana isn't in the latest US Top 1000. It last peaked at #6,025 in 1991.
US births per 5-year period, 1990βpresent (SSA data).