[mulesh]

Yes you can, but it involves working with the layout files.

You can use this guide to help create your layout:
ag_UnitFrames:Creating your own theme
I would suggest copying an existing layout file and practice editing on that first.

Just put your font file in "Interface\AddOns\ag_UnitFrames\fonts" folder and then edit your layout file to use it:

NameLabel = {
	Type = "string",
	Font = L["Interface\\AddOns\\ag_UnitFrames\\fonts\\YOURFONT.ttf"],
	FontSize = 10,
	Point = "LEFT",
	RelativeTo = "HealthBar",
	RelativePoint = "LEFT",
	x = 1.5,
	y =0,
	EndPoint = "RIGHT",
	EndRelativeTo = "HealthText",
	EndRelativePoint = "LEFT",
	Endx=2,
	Endy=0,
	Height = 1,
	},