Orkney rhymes with:
acne, ankney, blakeney, blakney, bleakney, brackney, cockney, hackney, hockney, konecny, lachney, mckechnie, pickney, pinckney, pinkney, rockne, stickney, ulicny
Orkney sounds like:
oarsman, oregan, oregano, oregon, oregonian, organ, organum, orgasm, origin, orkem, orkin, orrison, orsini, orsino, orson