It's the second safety the Titans have added this offseason. George Wilson joined the club in February after being released by the Buffalo Bills.
"Pollard is big, physical, experienced safety," Titans general manager Rushton Webster was quoted as saying on the Titans' website. "He was a key contributor for the Super Bowl winners last year and his physicality and experience will help us. Adding him and George Wilson to our safety group gives us options moving forward and greatly improves our depth there."
Pollard was released by the Ravens earlier this month after spending two seasons in Baltimore. He led the Super Bowl champs with 98 tackles during the 2012 regular season, adding two sacks and one interception in 13 games.
After missing the final three weeks of the regular season with a chest injury, Pollard recorded 17 tackles and a forced fumble in four playoff games.
The 28-year-old Purdue product spent his first three NFL seasons with Kansas City and also played two years in Houston. He has nine interceptions, nine sacks and 584 tackles in seven NFL seasons.