Matthew Thomas "Matt" Skiba (born February 24, 1976) is an American musician, singer, and songwriter, known for his role as the founding lead vocalist and guitarist for Alkaline Trio and the guitarist and co-lead vocalist of the band Blink-182 (2015–2022). His lyrical content commonly involves dark romantic themes.

Alkaline Trio was formed in 1996 with Skiba as the frontman. Since then, the band has released nine full-length albums over two decades. Skiba also recorded albums with side projects including Heavens and theHell, as well as two full-length solo albums with his backing band, the Sekrets.

Following Tom DeLonge's second departure from Blink-182 in early 2015, Skiba began touring with the pop-punk trio, then joined the band permanently later that year; he has since recorded two albums with them.