Lagoa Parish may refer to:

• Lagoa Parish, Lagoa, Algarve
• Lagoa Parish, Macedo de Cavaleiros in Macedo de Cavaleiros
• Lagoa Parish, Vila Nova de Famalicão, in Vila Nova de Famalicão

• Allium nitschmannii
• Allium niveum
• Allium nutans
• Allium nuttallii
• Allium obliquum
• Allium obscurum
• Allium ochotense
• Allium ochroleucum
• Allium odorum
• Allium omeiense
• Allium omiostema
• Allium ophiopogon
• Allium opizii
• Allium oporinanthum
• Allium oreophilum
• Allium oreoprasum
• Allium ornithogaloides
• Allium ousensanense
• Allium ovalifolium
• Allium oviflorum
• Allium oxypetalum
• Allium oxyphilum
• Allium paczoskianum
• Allium paepalanthoides
• Allium pallasii