"NAS" can refer to one of the following:

• Nas (b. Nasir Jones), American hip-hop MC/rapper.

• The New American Standard Bible, an English translation of the Bible.

• The Non Access Stratum, a functional layer in UMTS protocol stack.

• Network Attached Storage.

• The National Academy of Sciences.

• surat an-Nas in the Qur'an.

• Network Access Server, also known as terminal server