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dataframe/docs/StardustDocs/topics/concatDf.md

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+[//]: # (title: concat)
+
+<!---IMPORT org.jetbrains.kotlinx.dataframe.samples.api.Modify-->
+
+Returns [`DataFrame`](DataFrame.md) with the union of rows from several given [`DataFrame`](DataFrame.md) objects.
+
+<!---FUN concatDataFrames-->
+
+```kotlin
+df.concat(df1, df2)
+```
+
+<!---END-->
+
+<!---FUN concatIterable-->
+
+```kotlin
+listOf(df1, df2).concat()
+```
+
+<!---END-->
+
+See [all use cases of 'concat' operation](concat.md).