O

 Descendent of.

Oakes

 Name of a place. Near the oak trees.

Obaleshwar

 Shiva.

Ohileshwar

 Shiva.

Ojas

 Bright. Might. Power.

Oliver

 Kind. Affectionate.

Omar

 First son, most high.

Omesa

 Lord of the Om.

Omkar

 A holy sound and letter.

Omkareswar

 Shiv

Omganesh

 Lord Ganapathi.

Omswaroop

 Vishnu.

Omprakash

 Holy radiance.

Oren

 Ash tree.

Orlando

 Renowned in the land. Variant of Roland.

Ojaswin

 Powerful.Radiant.

Ojaswit

 Powerful.Radiant.

Oluwakemi

 God is protecting me.

Omganesh

 Lord Ganapathi.

Omswaroop

 Vishnu.

Oogharath

 Son of Ooghavand.

Ooghavanth

 King.

Osariemen

 God has given me.

Oscar

 Divine spearman.

Oudumber

 Vishnu

Oydin

 Moonlight.

Ojas           

 brilliance, shine, glow

Omkar          

 sound of Om, divine sound

Omkarnath      

 Shiva

Omanand        

 joy Of Om

Omprakash      

 light Of Om

Omswarup       

 like Om

Oojam          

 enthusiasm

Oorjit         

 powerful, strong

Ogan 

wave

Ojas

virility; energy

Om

creation; the essence of life

Omar

an era

Omja

born of cosmic unity

Omkar

beginning of life;

Omprakash

light of God

Omrao, Umrao

king

Omswaroop

manifestation of divinity

Oren

Ash Tree

Osman, Usman

salve of God

Obalesh

 Lord Shiva

Ohm

Ojas

 Vitality

Ojayit

 Courageous

Om

 Primordial sound

Omair

 Problem solver

Omar

 Life; long living

Omar

 Elevated

Omeir

 Long living

Omesh

 Lord of the Om

Omeshwar

 Lord of the Om

Omkar

 Religious word OM

Omkarnath

 Lord Shiva

Omprakash

 Sacred light

Omran

 Solid structure

Orman

 Seaman

Ossama

 One of the names of the lion.

Ovais

Owais

Ojas

lustre) 

Om

the sacred syllable)

Omar

an era)

Omja

born of cosmic unity)

Omkar

the sound of the sacred syllable)            

Omprakash

light of God)

Omrao, Umrao

king)    

Omswaroop

manifestation of divinity)

Osman, Usman

salve of God