Bulgarian (given)names

[Tong Duurai]

Are ancient Bulgar names like Toktu, Omurtag,Kobrat,Bayan, & Suvar used as given fornames in Modern Bulgaria?

[Arcane]

From the ones you've mentioned, only Omurtag is in use and really rarely. Boyan is really common but as far as I know Boyan and Bayan have totally different etymology. Probably somebody else will be able to give you some further info.

In Modern Bulgaria most names are of Slavic origin.

[ificouldfly]

I am very interested in onomastics
So, let's say that in modern Bulgaria there are two trends of naming babies.
One is with Western names, the other is with old names of the rulers.
In the Rulers' trend, more common are the tsars' names, such as Samuil, Simeon, Ivan-Asen, Kaloyan, Boris.
The khans' names are rarely given, the most popular are Krum, Kubrat , Kardam (which I personally adore, but I guess we'll have to choose Simeon), Asparuh (rare), Tervel, Presian...I have heard of one Sevar.
Omurtag is rare now, Toktu - not given, Bayan - never heard of someone called that.
I've read that Boyan is the slavic form of Bayan (which is mongolian).