Thomas Vesey may refer to:

• Thomas Vesey, 1st Viscount de Vesci (died 1804), Anglo-Irish peer
• Thomas Vesey, 3rd Viscount de Vesci (1803–1875), Irish peer and Conservative politician
• Sir Thomas Vesey, 1st Baronet (1668?–1730), Irish clergyman
• Thomas Eustace Vesey, 7th Viscount de Vesci (born 1955)
• Thomas Vesey (priest), Archdeacon of Armagh

• Arenibacter
• Arenibacter algicola
• Arenibacter antarcticus
• Arenibacter catalasegens
• Arenibacter certesii
• Arenibacter echinorum
• Arenibacter hampyeongensis
• Arenibacter latericius
• Arenibacter nanhaiticus
• Arenibacter nantica
• Arenibacter palladensis
• Arenibacter trinitatis
• Arenibacter troitsensis
• Arenicella
• Arenicella chitinivorans
• Arenicella xantha
• Arenicola piscatorum
• Arenimonas
• Arenimonas aestuarii
• Arenimonas alkanexedens
• Arenimonas caeni
• Arenimonas chishuii
• Arenimonas composti
• Arenimonas daechungensis
• Arenimonas daejeonensis