In Ireland we have:

Muff
Nobber
Sally Gap
Termonfeckin
Tubbercurry
Ringsend
Bastardstown
Dyke Parade
Ballinaboy
Belgooly
Ballsbridge
Letterfinish
Blackbox Theatre, Dyke Rd, Galway
Moll’s Gap
Ring
Laytown
Effin, County Limerick
Sandymount
Strangalowilly, Co Tyrone
Meelick
Freemount
Stillorgan
Naad, Cork
Mount Juliet
Mount Daisy
The Giant’s Ring, Belfast
South Ring Road
Dundonald
Bangor
Ringaskiddy
Skeheenarinky, Tipperary
Gaggin, Cork
Spunkane
Kilcock, Co. Kildare

Source: Placenames in Ireland that sound dirty but are not « Damien Mulley