Petty house is regional British English for an outhouse.

It may also refer to:

in the United States

• Petty-Roberts-Beatty House, historic octagon house in Clayton, Alabama, listed on the National Register of Historic Places (NRHP)
• Perry-Petty Farmstead, Mansfield Township, New Jersey, listed on the NRHP in Warren County
• Buckingham-Petty House, Duncan Falls, Ohio, listed on the NRHP in Muskingum County
• Petty House (Hot Springs, South Dakota), listed on the NRHP in Fall River County
• Crawford-Pettyjohn House, Pierre, South Dakota, listed on the NRHP in Hughes County

• As sadayir
• As Sadayir
• Assad Bucaram
• Assad Bucaram Elmhalin
• Assad class corvette
• Assadecma
• Assad family
• Assad Fudadin
• Assadhulla Abdulla
• Assad Hussain
• Assadism
• As Sadr
• As sadr
• Assads (disambiguation)
• Assad Seif
• Assads, Morocco
• Assad Suleiman
• Assadullah Khaled
• Assadullah Khalid
• Assad Vala
• Assael
• Assael Architecture
• As safa
• Assaf Abu Rahhal
• Assaf Al-Garni