Second line

Second line may refer to:
 * Second Line (album), a 2021 album by American singer-songwriter Dawn Richard.
 * Second line (ice hockey), an offensive unit generally composed of second-tier players
 * Second line (parades), a tradition in brass band parades in New Orleans, Louisiana, as well as an associated traditional dance style
 * Second Line (shipping line), a shipping line also known as Robert Kermits Red Star Line or New Line
 * The Second Line, an American jazz magazine