The demonstrations broke out in November after President Viktor Yanukovych's abrupt decision to freeze ties with the European Union and seek better ties with Russia instead.
A Kiev court upheld a request by city authorities to ban large gatherings in the center of the capital until March 8. The ruling was dated Jan. 8 but only published today.
Opposition leaders charged that authorities were preparing to use force to disperse protesters on Independence Square, where several thousand people were gathered.