Is it an Irish surname?

Im just wondering if the surname 'Ray' is Irish.thanks

The thing about the surname "Ray" is that it has a few different origins,i.e.Scottish,English,French,as well as Irish.Ray is one of the many anglicized versions of the old Irish surname "Ó Riabhaigh",which was first found in the north of the country.Ray had its origins in Ulster,and is still numerous in Co.Antrim and Co.Down,but is also found in several other parts of the country.In Ireland,Ray is also one of the variants of the surname "Reavey"(which makes sense,coz Ó Riabhaigh is Irish for both Ray and Reavey). In Scotland,Ray has gaelic origins from medieval Dumfriesshire.Ray is also a variant of clan names McRay,McRea and McRae in Scotland.
So yes,Ray IS indeed Irish-but is also Scottish,as well as English and maybe even French.It really depends on wherever the ancestors came from.(also worth mentioning that the surname "Ray" and the surname "Raymond" are NOT the same).

The name O'Raibhaigh (pronounced in anglicised form O'Ravey, O'Reavy, O'Reevy, O'Reavey etc) derives from the gaelic word for brindled, striped or tabby. This could be a reference to the pattern of greying in hair (in my family there is a pronounced white stripe at one temple in otherwise very dark hair....badger-like!)
My family comes from Co Down but there are variants of O', Mac, Mc and plain old Ravey all over Ulster.
I have never heard of Ray associated with Raibhaigh, but, it's possible!
Maybe more likely to be a variation of Rea, (Rai, MacRai, McRee, McCree, MacAree, MacIlree etc)although there may be some suggestion that these too come from the Raibhaigh stem.
So, I think the answer is 'maybe'! There are so many spelling variations that it's hard to tell.
Hope this helps rather than confusing the issue.

Tabby Ravey

I'd say that both of us are right,Tabby,because "Ó Riabhaigh" is indeed the correct Irish form of surnames Ray,Rea,Reay,Wray,Ravey,Reavy,Reavey etc.
All of these surnames are related in some way in Ireland,and have some kind of a link or a connection-but if we were to go into it we would be here until next year!

Usually Scott, also McRay, McCray, Mcgraith,
some from NC, costal town full of Rays from
Scotland.

The Ray surname is polygenetic,which means that it has several different origins,i.e.Irish,Scottish,English,Scotch-Irish and French.Ray is also quite common in America,but a lot of them would be of Scottish,Irish,English and Scotch-Irish descent.