I'm not sure if this is what you mean, but Cairo used to have a Reza Pahlavi Street, which a few years ago was changed to Mossadeq Street when relations with Iran were beginning to thaw.  (The way the president's been talking about the "Shiite threat" lately, I suspect they may be considering changing it back....)

The British High Commission in Maputo is on Avenida Vladimir Lenin, and I'm told that the Brits at one point tried to get the Mozambican government to rename just their block after Winston Churchill, but to no avail.

Maputo is, as far as I know, the only place outside North Korea with a street named after Kim Jong Il.

A few years ago, Zimbabwe decided to rename a street in honor of then-Namibian President Sam Nujoma.  That's all fine and dandy, Nujoma was one of Robert Mugabe's staunchest supporters, but also a legitimate African revolutionary icon in his own right.  It did not suprise me that Harare would have a Sam Nujoma Street.  (Windhoek already had a Robert Mugabe Avenue, and Harare has lots of other streets named after Zimbabwean liberation heros and other African struggle icons, including Samora Machel and Nelson Mandela.)

The strange thing was which street they chose to rename -- Second Street.  The numbered streets now jump from First to Third, with Sam Nujoma in the middle.  And yet Harare, for all Mugabe's anti-British, anti-colonial bluster, still has a Prince Edward Street.

Is it me, or is that weird?