diff --git a/runtime/syntax/dax.vim b/runtime/syntax/dax.vim
new file mode 100644
index 0000000..12e54ee
--- /dev/null
+++ b/runtime/syntax/dax.vim
@@ -0,0 +1,151 @@
+" Vim syntax file
+" Language:     Data Analysis Expressions (DAX)
+" Maintainer:   Anarion Dunedain <anarion80@gmail.com>
+" Last Change:
+"   2025 Mar 28  First version
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+        finish
+endif
+let s:keepcpo = &cpo
+set cpo&vim
+
+" There are DAX functions with dot in the name (like VARX.S)
+setlocal iskeyword+=.
+" DAX is case insensitive
+syn case ignore
+
+" DAX statements
+syn keyword daxStatement DEFINE EVALUATE MEASURE RETURN VAR
+syn match daxStatement "ORDER\ BY"
+syn match daxStatement "START\ AT"
+
+" TODO
+syn keyword daxTodo FIXME NOTE TODO OPTIMIZE XXX HACK contained
+
+" DAX functions
+syn keyword daxFunction
+  \ ABS ACCRINT ACCRINTM ACOS ACOSH ACOT ACOTH
+  \ ADDCOLUMNS ADDMISSINGITEMS ALL ALLCROSSFILTERED ALLEXCEPT ALLNOBLANKROW ALLSELECTED
+  \ AMORDEGRC AMORLINC AND APPROXIMATEDISTINCTCOUNT ASIN ASINH ATAN
+  \ ATANH AVERAGE AVERAGEA AVERAGEX BETA.DIST BETA.INV BITAND
+  \ BITLSHIFT BITOR BITRSHIFT BITXOR BLANK CALCULATE CALCULATETABLE
+  \ CALENDAR CALENDARAUTO CEILING CHISQ.DIST CHISQ.DIST.RT CHISQ.INV CHISQ.INV.RT
+  \ CLOSINGBALANCEMONTH CLOSINGBALANCEQUARTER CLOSINGBALANCEYEAR COALESCE COLUMNSTATISTICS COMBIN COMBINA
+  \ COMBINEVALUES CONCATENATE CONCATENATEX CONFIDENCE.NORM CONFIDENCE.T CONTAINSROW
+  \ CONTAINSSTRING CONTAINSSTRINGEXACT CONVERT COS COSH COT COTH
+  \ COUNT COUNTA COUNTAX COUNTBLANK COUNTROWS COUNTX COUPDAYBS
+  \ COUPDAYS COUPDAYSNC COUPNCD COUPNUM COUPPCD CROSSFILTER CROSSJOIN
+  \ CUMIPMT CUMPRINC CURRENCY CURRENTGROUP CUSTOMDATA DATATABLE DATE
+  \ DATEADD DATEDIFF DATESBETWEEN DATESINPERIOD DATESMTD DATESQTD DATESYTD
+  \ DATEVALUE DAY DB DDB DEGREES DETAILROWS DISC
+  \ DISTINCT column DISTINCT table DISTINCTCOUNT DISTINCTCOUNTNOBLANK DIVIDE DOLLARDE DOLLARFR
+  \ DURATION EARLIER EARLIEST EDATE EFFECT ENDOFMONTH ENDOFQUARTER
+  \ ENDOFYEAR EOMONTH ERROR EVALUATEANDLOG EVEN EXACT EXCEPT
+  \ EXP EXPON.DIST FACT FALSE FILTER FILTERS FIND
+  \ FIRST FIRSTDATE FIXED FLOOR FORMAT FV GCD
+  \ GENERATE GENERATEALL GENERATESERIES GEOMEAN GEOMEANX GROUPBY HASONEFILTER
+  \ HASONEVALUE HOUR IF IF.EAGER IFERROR IGNORE INDEX
+  \ INFO.ALTERNATEOFDEFINITIONS INFO.ANNOTATIONS INFO.ATTRIBUTEHIERARCHIES INFO.ATTRIBUTEHIERARCHYSTORAGES INFO.CALCDEPENDENCY INFO.CALCULATIONGROUPS INFO.CALCULATIONITEMS
+  \ INFO.CATALOGS INFO.CHANGEDPROPERTIES INFO.COLUMNPARTITIONSTORAGES INFO.COLUMNPERMISSIONS INFO.COLUMNS INFO.COLUMNSTORAGES INFO.CSDLMETADATA
+  \ INFO.CULTURES INFO.DATACOVERAGEDEFINITIONS INFO.DATASOURCES INFO.DELTATABLEMETADATASTORAGES INFO.DEPENDENCIES INFO.DETAILROWSDEFINITIONS INFO.DICTIONARYSTORAGES
+  \ INFO.EXCLUDEDARTIFACTS INFO.EXPRESSIONS INFO.EXTENDEDPROPERTIES INFO.FORMATSTRINGDEFINITIONS INFO.FUNCTIONS INFO.GENERALSEGMENTMAPSEGMENTMETADATASTORAGES INFO.GROUPBYCOLUMNS
+  \ INFO.HIERARCHIES INFO.HIERARCHYSTORAGES INFO.KPIS INFO.LEVELS INFO.LINGUISTICMETADATA INFO.MEASURES INFO.MODEL
+  \ INFO.OBJECTTRANSLATIONS INFO.PARQUETFILESTORAGES INFO.PARTITIONS INFO.PARTITIONSTORAGES INFO.PERSPECTIVECOLUMNS INFO.PERSPECTIVEHIERARCHIES INFO.PERSPECTIVEMEASURES
+  \ INFO.PERSPECTIVES INFO.PERSPECTIVETABLES INFO.PROPERTIES INFO.QUERYGROUPS INFO.REFRESHPOLICIES INFO.RELATEDCOLUMNDETAILS INFO.RELATIONSHIPINDEXSTORAGES
+  \ INFO.RELATIONSHIPS INFO.RELATIONSHIPSTORAGES INFO.ROLEMEMBERSHIPS INFO.ROLES INFO.SEGMENTMAPSTORAGES INFO.SEGMENTSTORAGES INFO.STORAGEFILES
+  \ INFO.STORAGEFOLDERS INFO.STORAGETABLECOLUMNS INFO.STORAGETABLECOLUMNSEGMENTS INFO.STORAGETABLES INFO.TABLEPERMISSIONS INFO.TABLES INFO.TABLESTORAGES
+  \ INFO.VARIATIONS INFO.VIEW.COLUMNS INFO.VIEW.MEASURES INFO.VIEW.RELATIONSHIPS INFO.VIEW.TABLES INT INTERSECT
+  \ INTRATE IPMT ISAFTER ISBLANK ISCROSSFILTERED ISEMPTY ISERROR
+  \ ISEVEN ISFILTERED ISINSCOPE ISLOGICAL ISNONTEXT ISNUMBER ISO.CEILING
+  \ ISODD ISONORAFTER ISPMT ISSELECTEDMEASURE ISSUBTOTAL ISTEXT KEEPFILTERS
+  \ LAST LASTDATE LCM LEFT LEN LINEST LINESTX
+  \ LN LOG LOG10 LOOKUPVALUE LOWER MATCHBY MAX
+  \ MAXA MAXX MDURATION MEDIAN MEDIANX MID MIN
+  \ MINA MINUTE MINX MOD MONTH MOVINGAVERAGE MROUND
+  \ NATURALINNERJOIN NATURALLEFTOUTERJOIN NETWORKDAYS NEXT NEXTDAY NEXTMONTH NEXTQUARTER
+  \ NEXTYEAR NOMINAL NONVISUAL NORM.DIST NORM.INV NORM.S.DIST NORM.S.INV
+  \ NOT NOW NPER ODD ODDFPRICE ODDFYIELD ODDLPRICE
+  \ ODDLYIELD OFFSET OPENINGBALANCEMONTH OPENINGBALANCEQUARTER OPENINGBALANCEYEAR OR ORDERBY
+  \ PARALLELPERIOD PARTITIONBY PATH PATHCONTAINS PATHITEM PATHITEMREVERSE PATHLENGTH
+  \ PDURATION PERCENTILE.EXC PERCENTILE.INC PERCENTILEX.EXC PERCENTILEX.INC PERMUT PI
+  \ PMT POISSON.DIST POWER PPMT PREVIOUS PREVIOUSDAY PREVIOUSMONTH
+  \ PREVIOUSQUARTER PREVIOUSYEAR PRICE PRICEDISC PRICEMAT PRODUCT PRODUCTX
+  \ PV QUARTER QUOTIENT RADIANS RAND RANDBETWEEN RANGE
+  \ RANK RANK.EQ RANKX RATE RECEIVED RELATED RELATEDTABLE
+  \ REMOVEFILTERS REPLACE REPT RIGHT ROLLUP ROLLUPADDISSUBTOTAL ROLLUPGROUP
+  \ ROLLUPISSUBTOTAL ROUND ROUNDDOWN ROUNDUP ROW ROWNUMBER RRI
+  \ RUNNINGSUM SAMEPERIODLASTYEAR SAMPLE SEARCH SECOND SELECTCOLUMNS SELECTEDMEASURE
+  \ SELECTEDMEASUREFORMATSTRING SELECTEDMEASURENAME SELECTEDVALUE SIGN SIN SINH SLN
+  \ SQRT SQRTPI STARTOFMONTH STARTOFQUARTER STARTOFYEAR STDEV.P STDEV.S
+  \ STDEVX.P STDEVX.S SUBSTITUTE SUBSTITUTEWITHINDEX SUM SUMMARIZE SUMMARIZECOLUMNS
+  \ SUMX SWITCH SYD T.DIST T.DIST.2T T.DIST.RT T.INV
+  \ T.INV.2t TAN TANH TBILLEQ TBILLPRICE TBILLYIELD TIME
+  \ TIMEVALUE TOCSV TODAY TOJSON TOPN TOTALMTD TOTALQTD
+  \ TOTALYTD TREATAS TRIM TRUE TRUNC Table Constructor UNICHAR
+  \ UNICODE UNION UPPER USERCULTURE USERELATIONSHIP USERNAME USEROBJECTID
+  \ USERPRINCIPALNAME UTCNOW UTCTODAY VALUE VALUES VAR.P VAR.S
+  \ VARX.P VARX.S VDB WEEKDAY WEEKNUM WINDOW XIRR
+  \ XNPV YEAR YEARFRAC YIELD YIELDDISC YIELDMAT
+
+" CONTAINS is a vim syntax keyword and can't be a defined keyword
+syn match daxFunction "CONTAINS"
+
+" Numbers
+" integer number, or floating point number without a dot.
+syn match daxNumber "\<\d\+\>"
+" floating point number, with dot
+syn match daxNumber "\<\d\+\.\d*\>"
+
+syn match daxFloat "[-+]\=\<\d\+[eE][\-+]\=\d\+"
+syn match daxFloat "[-+]\=\<\d\+\.\d*\([eE][\-+]\=\d\+\)\="
+syn match daxFloat "[-+]\=\<\.\d\+\([eE][\-+]\=\d\+\)\="
+
+" String and Character constants
+syn region daxString start=+"+  end=+"+
+
+" DAX Table and Column names
+syn region daxTable start=+'+ms=s+1  end=+'+me=e-1
+syn region daxColumn matchgroup=daxParen start=/\[/ end=/\]/
+
+" Operators
+syn match daxOperator "+"
+syn match daxOperator "-"
+syn match daxOperator "*"
+syn match daxOperator "/"
+syn match daxOperator "\^"
+syn match daxOperator "\ NOT(\s\|\\)"
+syn match daxOperator "\ IN\ "
+syn match daxOperator "&&"
+syn match daxOperator "&"
+syn match daxOperator "\\|\\|"
+syn match daxOperator "[<>]=\="
+syn match daxOperator "<>"
+syn match daxOperator "="
+syn match daxOperator ">"
+syn match daxOperator "<"
+
+" Comments
+syn region daxComment start="\(^\|\s\)\//"   end="$" contains=daxTodo
+syn region daxComment start="/\*"  end="\*/" contains=daxTodo
+
+" Define highlighting
+hi def link daxComment          Comment
+hi def link daxNumber           Number
+hi def link daxFloat            Float
+hi def link daxString           String
+hi def link daxStatement        Keyword
+hi def link daxOperator         Operator
+hi def link daxFunction         Function
+hi def link daxTable            Number
+hi def link daxColumn           Statement
+hi def link daxParen            Delimiter
+hi def link daxTodo             Todo
+
+let b:current_syntax = "dax"
+
+let &cpo = s:keepcpo
+unlet! s:keepcpo
+
+" vim: ts=8