Thirty Seconds Over Winterland is an album by the American psychedelic rock band Jefferson Airplane. It was recorded live in August and September 1972, at the Auditorium Theatre in Chicago and the Winterland Ballroom in San Francisco. It was released in April 1973; reflecting the band's declining commercial stature, it only peaked at No. 52 on the Billboard chart.

Winterland Ballroom was an ice skating rink and music venue in San Francisco, California, United States. The arena was located at the corner of Post Street and Steiner Street. It was converted for exclusive use as a music venue in 1971 by concert promoter Bill Graham and became a popular performance location for many rock acts. Graham later formed a merchandising company called Winterland Productions, which sold concert shirts, memorabilia, and official sports team merchandise.