Eliza I of Valvexia

| embed = | name = Eliza I | title = Her Majesty | titletext = | more = | type = | image = | image_size = | alt = | caption =

| succession = Queen of Valvexia | moretext = | reign = 5 August 1194 – 4 May 1223 | reign-type = Reign | coronation = 15 August 1194
Saint Luca Cathedral, Antople | cor-type = Coronation | predecessor = Charles I | pre-type = Predecessor | successor = Daniel I | suc-type = Successor | regent = | reg-type =

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| birth_name = Eliza Alanzia Marie Halburton | birth_date = 27 October 1145 | birth_place = Salwood Manor
Salwood, Province of Halburton | death_date = 4 May 1223 | death_place = Travalle Palace
Antople | burial_date = 7 May 1223 | burial_place = Halburton Royal Crypt
Salwood Manor | spouse = William Enwoden | spouse-type = Prince-Consort | consort = yes | issue = none | issue-link = | issue-pipe = | issue-type = | full name = | era name = | era dates = | regnal name = | posthumous name= | temple name = | house = Halburton | house-type = House | father = Charles I | mother = Alanzia of Walburton

| religion = Assisanism | occupation = | signature_type = | signature =

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Eliza I of Valvexia (Eliza Alanzia Marie Halburton; 27 October 1145 - 4 May 1223) was queen of Valvexia from 1194 until her death in 1223. Upon her ascention, she became the first female monarch in Valvexian history.