Second wave

Second wave or Wave 2 may refer to:

Arts and entertainment

 * Hong Kong Second Wave, a group of Hong Kong film directors in late 1980s to 1990s
 * Second Wave, a fictional terrorist group from the second season of 24

Music

 * Second wave ska, or 2 Tone, music genre created in England in the late 1970s
 * 2nd Wave (album), a 1988 album by Surface
 * The Second Wave (Khoma album), a 2006 album by Khoma
 * The Second Wave: 25 Years of NWOBHM, a 2003 album by British indie label Communiqué Records

Computing

 * 802.11ac Wave 2, 2nd generation 802.11ac Wi-Fi products
 * Wave 2, an update for Windows Live

History

 * Second-wave feminism, a period of feminist history lasting approximately from the late 1960s through the 1980s
 * Second European colonization wave, starting in the second half of the 19th century with the New Imperialism period
 * The deadly second wave of the Spanish flu
 * The second wave of the COVID-19 pandemic