Pope Benedict XVI is to begin sending Twitter messages using the handle @pontifex as his personal account.
A Vatican spokesman said Pope Benedict XVI wanted to reach out to everyone with tweets translated into eight languages.
The first tweet from his account, whose name means both pontiff and builder of bridges, is expected on 12 December.
Last year, the Pope sent his first from a Vatican account to launch the Holy See's news information portal.
The Vatican said the Pope will be using a question-and-answer format for his first Twitter session, focusing on answering questions about faith in 140 characters.
The Vatican has invited people to start sending in questions ahead of time for the Pope to answer.
The tweets are expected to highlight messages from his weekly general audience, Sunday blessings and homilies on key Church holidays as well as papal reaction to world events.