It roamed the streets causing "intense panic" before it entered a train station in the 15th arrondissement of the city.
Paris police later tweeted "the danger has been eliminated", after local residents alerted emergency services to the unwanted tourist.
Nobody was hurt by the 200kg (31-stone) tiger, according to local reports. 'It was a very big, fierce looking animal'.
Witnesses say two circus personnel lured the tiger to an alleyway using a slab of meat attached to a pole.
The animal was shot dead by its owner near the pont du Garigliano, according to Le Parisien.
Armed police were then seen heading to the scene, together with the tigers' owners.
The tiger had escaped from the Bormann-Moreno circus, which recently moved to the area and planned to open its doors to the public on Dec 3.
The animal was shot in an alley, he said, "it was not in the street, there were no passers-by".
The animal escaped in the late afternoon of the circus located in the west of the French capital.
At 6.10pm the same announcers said: "The incident on line T3a is over, and traffic has resumed".