Double exposure: 1970s rock sensation (Mamma Mia) and scholar/diplomat name in Israel. 

Abba

A short but strong biblical name with multicultural appeal, Asa is enjoying new visibility thanks to hot young actor Asa Butterfield of Hugo fame. 
 Asa was the name of an important biblical king of Judah, who reigned for more than forty years. In modern times, the name was long associated with the strong patriarch Asa Buchanan on the soap opera "One Life to Live," but since the character "died" in 2007, this gives the name plenty of room to rejuvenate. Popular with the Puritans, Asa can be found in the novels of James Fenimore Cooper and Theodore Dreiser. 
 A notable real-life namesake is the highly influential botanist Asa Gray, and Asa was the birth name of Al Jolson. Radiohead's Colin Greenwood has a son named Asa. 
 Asa could also be a path to the hip nickname Ace or an alternative to the rapidly rising Asher.

Acca

Acwulf

Ailward

Alca

Alda

Aldhere

Alhmund

Aluca

Ambre

Amma

Angenmær

Anna

Beac

Beaw

Bebba

Becca

Beda

Beofor

Beohha

Beorhtnoth

Beorhtric

Beorna

Betti

Bibba

Bica

Byrhtnoth

Byttel

Bæga

Ceacca

Ceaddica

Ceadela

Cebbi

Cedd

Cedda

Centwine

Ceola

Ceolfrid

Ceolfrith

Ceolheard

Ceolred

Cetta

Cæcca

Dydda

Eadmund

With its sharp, succinct sounds and cool, laidback style, Eli is a popular choice among parents today. Compact and punchy, it is a Biblical name with plenty of charm. 
Derived from the Hebrew ’aly, the name Eli means “high” or “ascended.” In the Old Testament, Eli was a high priest of the Israelites, who trained and gave guidance to the prophet Samuel. 
While the Biblical Eli suffered an unhappy end due to his sons’ misdeeds, his name hasn’t shared the same fate. Used since the 17th century, Eli has never been out of the US Top 1000. It has featured in the Top 100 for the last decade, and is currently popular in the UK, Australia, New Zealand, and The Netherlands too. 
Eli is also used as a shortened form of Elijah, Elias, Eliezer, or even Elliot and in some Scandinavian countries, is it used as a feminine name, most often as a nickname for Elisabet or Elin. With its unisex potential and its longer forms ranking highly, Eli might feel more popular than it actually is. 
Notable namesakes include Eli Whitney, the inventor of the cotton gin, Eli Long, a Civil War general, and Eli Roth, a film director, screenwriter, and actor. Enjoyed by the general public and celebrities alike, Eli has been chosen by CNN anchor Campbell Brown, SNL alum Rachel Dratch, and actor Kevin Weisman. 
Spirited but solid, no-fuss Eli is given to over 4000 boys each year, so you wouldn’t be alone in loving the name. If you don’t want your baby to have share however, you could consider other Biblical E names such as Eben, Elim, Enosh, or Eran, or perhaps other 3 letter gems, like Ira, Ari, Jem, Nye, or Ivo.

Eadbeald

Eadbeorht

Eadda

Eaddi

Eadfrith

Eadi

Eadlac

Eadric

Eadwig

Eadwulf

Eahlmund

Eahlsige

Ealda

Ealdbeald

Ealdhere

Ealhbeorht

Eanred

Eanwulf

Eardwulf

Earma

Eata

Ecca

Ecga

Ecgheard

Ecghere

Ecgi

Ecgwulf

Effa

Elesa

Elfgar

Elli

Elta

Elti

Eorcenwald

Frithuwald

Gica

Gicca

Giedda

Ibba

Ibbi

Icca

Icel

Lustwine

Osmund

Despite the success of so many O-starting <a href="https://nameberry.com/boys-names">boys names</a>--Oliver, Owen, Otis, Oscar--Oswald has not yet shown any signs of resurrection, though he does have the animating nicknames Ozzie/Ozzy and Oz. The name has some literary cred--in Chaucer's Canterbury Tales, Shakespeare's King Lear and a novel by H. G.Wells--and there was early cartoon character Oswald the Lucky Rabbit.

Oswald

Odda

Olla

Osbald

Osfrith

vintageluvs's list "Anglo-Saxon Boy Names" of 202 great name ideas: Abba - Ættin!

Anglo-Saxon Boy Names