The Triborough Bridge and Tunnel Authority (TBTA), doing business as MTA Bridges and Tunnels, is an affiliate agency of the Metropolitan Transportation Authority that operates seven toll bridges and two tunnels in New York City. In terms of traffic volume, it is the largest bridge and tunnel toll agency in the United States, serving more than a million people each day and generating more than $1.9 billion in toll revenue annually as of 2017. As of 2018, its budget was $596 million, funded through taxes and fees.

The Triborough Bridge and Tunnel Authority was founded in 1933 as the Triborough Bridge Authority (TBA). The agency was named after its first crossing, the Triborough Bridge. The Triborough Bridge Authority was reorganized as the Triborough Bridge and Tunnel Authority in 1946, and subsequently began using the name MTA Bridges and Tunnels in 1994. In addition to operating all nine toll crossings located entirely within New York City, the TBTA also controlled several buildings such as the New York Coliseum and the East Side Airline Terminal, both of which have been demolished.