William Troy McLawhorn (born November 4, 1968) is an American musician who has been a guitarist in the rock band Evanescence since 2007.

The band left MCA and signed a new deal with Roadrunner Records in 2001 and released their second album, Blue in the Face, with the song "Imprint" reaching into the top 20 also.

[citation needed] In May 2007, McLawhorn was announced as the replacement for Evanescence's former guitarist John LeCompt and played with the band through their Open Door tour, which ended in December 2007.

The first single from the record, "Country Song", co-written by McLawhorn, was released in the United States on March 8, 2011.

I really enjoyed playing and creating music with the guys and I wish that I didn't have to leave especially now that the album that we worked so hard on is finally coming out.

In April 2011, Seether frontman Shaun Morgan took to his Twitter account to vent his frustrations regarding Troy's still unconfirmed new gig.

Anyone who knows me knows that I am not a vindictive person and I am just trying to find a place that I can be long term and play music with people that I can trust."

On June 12, 2011, Amy Lee of Evanescence announced on her Twitter account that McLawhorn had officially rejoined the band for their upcoming tour and new album due out on October 11, 2011.