|No. 58, 52, 48|
|Position:||Fullback / Linebacker|
|Date of birth:||July 15, 1987|
|Place of birth:||Marksville, Louisiana|
|Height:||6 ft 2 in (1.88 m)|
|Weight:||250 lb (113 kg)|
|High school:||Marksville (LA)|
|* Offseason and/or practice squad member only|
|Career NFL statistics|
Isaiah Greenhouse (born July 15, 1987) is a former American football linebacker and fullback. He was signed by the Houston Texans as an undrafted free agent in 2010. He played college football at Northwestern State.
After going undrafted in the 2010 NFL Draft, Greenhouse was signed by the Houston Texans on May 18, 2010. They tried him at fullback, but moved him back to linebacker later. He was cut on September 3, 2010, and signed to the practice squad two days later. He was called up from the practice squad on October 3, 2010, but was waived on October 10, after being on the roster for one week. He was re-signed to the practice squad on November 3, 2010. Greenhouse was promoted on December 29, 2010. He was re-signed on January 5, 2011. The Texans released him on February 18, 2011.
On August 16, 2011, he was moved to fullback. He was waived on September 3, 2011, and was signed to the practice squad the next day. He was waived/injured on August 23, 2012.