The Children's Television Workshop (the producers of Sesame Street) have created a number of localized versions of Sesame Street (usually in cooperation with a local production company or broadcaster). Some examples of Sesame Street around the world:
Sisimpur -- Sesame Street Bangledesh features Ki Khobo
Zhima Jie -- Sesame Street China featuring Big Bird's cousin, Da Niao
Alam Simsim -- Sesame Street Egypt featuring Nimnim
Sesamestrasse -- from Germany features Samson
Sippuray Sumsum (also Shalom Sesame)- from Israel features Noah and Brosch
Hikayat Simsim - from Jordan features Juljul and Tonton
Plaza Sésamo from Mexico features Abelardo (another cousin of Big Bird) and Lola
Sesamstraat is from the Netherlands and features Pino and Leniemienen
Hikayat Simsim is from Palestine and features Kareem and Haneen
Ulitsa Sezam is from Russia and features Businka
Takalani Sesame is from South Africa and features Kami
There are also the following versions:
Vila Sésamo (Brazil), Sesame Park (Canada), Iftah Ya Simsim (Kuwait), Sesam Stasjon (Norway), Sesame! or Batibot (Philippines), Rua Sésamo (Portugal), Barrio Sésamo (Spain) and Susam Sokaği (Turkey).
EDIT: I just found out that CTW is now called Sesame Workshop.