Asriel

Variant of Azriel used in the Geneva Bible (1560), Douay-Rheims Bible (1582-1610), the Clementine Vulgate (1592) and the Nova Vulgata ("Neo-Vulgate", 1979). The latter two are respectively the former and current official Bible of the Roman Catholic Church.

In the Septuagint (Greek Old Testament) Asriel occurs only in verse 25:18 of 1 Chronicles, where it is a form of Azarel.

In literature, the English author Philip Pullman (b. 1946) used the name for a character in his His Dark Materials series, first released in 1995.

This is the name of a character in the RPG Undertale. The name Asriel has several possible meanings or origins.
Asriel name is a combination of his parents' names, Asgore and Toriel, likely stemming from Asgore being terrible at naming things. An interesting thing to note is that this follows Anglo-Saxon naming traditions, from where the English language imported names like Albert, Edgar, or Wilfred.
"Asriel" might be derived from Azrael, the Angel of Death in Judaism and Islam.
His full name, Asriel Dreemurr, is an anagram of "Serial Murderer".
Asriel is also a name of Hebrew origin that means "Helped by god." This might be a reference to Asriel being miraculously saved and turned to a flower after dying, or helping Frisk by breaking the barrier with his god-like powers.