The most popular types are:
IK 260 - 11 meters long bus with under-floor middle engine
IK 280 - 16,5 meters long articulated bus with under-floor mid engine
IK 256 - 11 meters long coach
Ikarus 216
midibus in Kuwait
Ikarus 250
12 meters long variant of Ikarus 256, in Abu Dhabi, UAE
Ikarus 255
with automatic doors, in Hungary(?), or maybe somewhere on the East side of the "Iron Curtain"
Ikarus 256
Kuwait edition with air conditioner
Ikarus 259
on Renault chassis, in Egypt
Renault-Ikarus 259
Ikarus 260 - at differnet locations.
Taipei, Taiwan
Madagascar. It has berliet chassis
Madagascar, an off-road lookalike, but with rear wheel drive
Ikarus 261
260 built for left-side driving countries
Made for Tanzania
Ikarus 266
bus in China
Ikarus 280 - articulated, at different locations
Bratislava, Slovakia
with edgy (not rounded) lights, in Poland
A strange 280, with left-side driver seat, but left doors, in Tanzania
Ikarus 283T
18 meters long articulated trolley, in Moscow, Russia
That trolleys have Russian electronics, IK 283 diesel bus are also used by many countries.
Ikarus 286
articulated bus for USA & Canada, in Ottawa or Toronto... those cities had them
Ikarus 435
articulated bus in Poland
Ikarus 412
low-floor bus, in Taipei, Taiwan
http://busexplorer.com/PHP/MidPage.php?id=1603
Ikarus 417
low-floor articulated bus in Wuppertal, Germany