The acronym TSOP can stand for several things:
- In electronics, thin small-outline packages are a type of surface mount technology
- The song "TSOP (The Sound of Philadelphia)", is the theme song for the American television music program Soul Train, and a 1974 hit single by the band MFSB
- TSOP Records, a subsidiary of Philadelphia International Records, named after the hit MFSB song
- The 1998 Death album, The Sound of Perseverance
- In telecommunications, Transparent SDH/SONET over Packet, a proposed IETF standard