Legg House may refer to:

in the United States

• Legg House (Bloomington, Indiana), listed on the National Register of Historic Places (NRHP) in Monroe County
• Legg's Dependence, Stevensville, Maryland, NRHP-listed
• John Legg House, Worcester, Massachusetts, NRHP-listed
• Harry F. Legg House, Minneapolis, Minnesota, NRHP-listed

• 3'-phosphoadenylyl-sulfate:desulfoglucosinolate sulfotransferase
• 3'-phosphoadenylyl-sulfate:estrone 3-sulfotransferase
• 3'-phosphoadenylyl-sulfate:galactosylceramide 3'-sulfotransferase
• 3'-phosphoadenylyl-sulfate:galactosylsphingosine sulfotransferase
• 3'-phosphoadenylyl-sulfate:glycochenodeoxycholate 7-sulfotransferase
• 3'-phosphoadenylyl-sulfate:glycolithocholate sulfotransferase
• 3'-phosphoadenylyl-sulfate:keratan 6'-sulfotransferase
• 3'-phosphoadenylyl-sulfate:L-tyrosine-methyl-ester sulfotransferase
• 3'-phosphoadenylyl-sulfate:phenolic-steroid sulfotransferase
• 3'-phosphoadenylyl-sulfate:phenol sulfotransferase
• 3'-phosphoadenylyl-sulfate:protein-tyrosine O-sulfotransferase
• 3'-phosphoadenylyl-sulfate:quercetin-3-sulfate 3'-sulfotransferase
• 3'-phosphoadenylyl-sulfate:quercetin-3-sulfate 4'-sulfotransferase
• 3'-phosphoadenylyl-sulfate:quercetin 3-sulfotransferase
• 3'-phosphoadenylyl-sulfate:Renilla luciferin sulfotransferase
• 3'-phosphoadenylyl-sulfate sulfohydrolase
• 3'-phosphoadenylyl-sulfate:thiol S-sulfotransferase
• 3-phospho-D-glycerate 1,2-phosphomutase
• 3-phospho-D-glycerate:NAD+ 2-oxidoreductase
• 3-phospho-D-glyceroyl-phosphate:polyphosphate phosphotransferase
• 3-phosphoglycerate dehydrogenase
• 3-phosphonopyruvate carboxy-lyase (2-phosphonoacetaldehyde-forming)
• 3-phosphoserine phosphatase
• 3 Pieces in the Form of a Pear
• 3 Pieces in the Shape of a Pear