Arqba

{{Infobox month

| image =

| alt =

| caption =

| native_name = {{Native name|myz|ࡀࡓࡒࡁࡀ}}

| calendar = Mandaean calendar

| num = 10

| days = 30

| season = paiz (autumn)

| gregorian = April / May

| holidays =

| prev_month = Qaina

| next_month = Hitia

}}

Arqba ({{langx|myz|ࡀࡓࡒࡁࡀ}}), alternatively known as Mašrwan ({{langx|myz|ࡌࡀࡔࡓࡅࡀࡍ|translit=Mašruan}}),{{cite book | last=Häberl | first=Charles | url=https://www.liverpooluniversitypress.co.uk/doi/book/10.3828/9781800856271 | title=The Book of Kings and the Explanations of This World: A Universal History from the Late Sasanian Empire | location=Liverpool | publisher=Liverpool University Press | date=2022 | isbn=978-1-80085-627-1}} is the tenth month of the Mandaean calendar.{{cite book|last=Bhayro|first=Siam|title=Hellenistic Astronomy |chapter=Cosmology in Mandaean Texts|publisher=Brill|date=2020-02-10|chapter-url=https://brill.com/view/book/edcoll/9789004400566/BP000051.xml|access-date=2021-09-03|pages=572–579|doi=10.1163/9789004400566_046|isbn=9789004243361 |s2cid=213438712 }}{{cite book|last=Gelbert|first=Carlos|title=The Mandaeans and the Jews|publisher=Living Water Books|publication-place=Edensor Park, NSW|year=2005|isbn=0-9580346-2-1|oclc=68208613}}

It is the Mandaic name for the constellation Scorpio. It currently corresponds to April / May in the Gregorian calendar due to a lack of a leap year in the Mandaean calendar.