The feline would be following in the footsteps of a menagerie of dogs and monkeys who were among the early stars of the US and Soviet space programmes in the 1960s.
But the announcement of its planned foray into the atmosphere aboard Iran's Kavoshgar satellite carrier prompted an outcry from animal rights groups.
Top space official Mohammad Ebrahimi told the state IRNA news agency that the mission could go ahead by March next year but previous launch dates have been put off without official explanation.
His announcement drew an angry response from People for the Ethical Treatment of Animals.
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"Iran's archaic experiment... Is a throwback to the primitive techniques of the 1950s," the animal rights group's spokesman Ben Williamson said.
"European and US space agencies stopped sending animals into space not only because it is unethical but also because they turned out to be poor models for the human experience and because superior, more scientific non-animal methods of study are now available."
Iran in January claimed to have successfully launched a live monkey into space and have it land safely back on Earth.
Iran's first attempt to send a monkey into space failed in September 2011.
Iran, which first put a satellite into orbit in 2009, has previously sent a rat, turtles and worms into space.
Iran's space programme has prompted concern among Western governments, which suspect it is cover for an attempt to master the technology that would be required to deliver a nuclear warhead.
Iran denies any such ambition.
The Persian is the most popular breed of feline in the United States, according to the Cat Fanciers' Association.