diff --git a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
--- a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
+++ b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
@@ -113,6 +113,43 @@
   let assemblyFormat = "attr-dict";
 }
 
+//===---------------------------------------------------------------------===//
+// 2.7 teams Construct
+//===---------------------------------------------------------------------===//
+
+def TeamsOp : OpenMP_Op<"teams", [AttrSizedOperandSegments]> {
+  let summary = "teams construct";
+  let description = [{
+    The teams construct creates a league of initial teams and the initial thread 
+    in each team executes the region.
+
+    The optional $num_threads_var parameter specifies the number of threads which
+    should be used to execute the parallel region.
+
+    The optional $default_val attribute specifies the default data sharing attribute
+    of values used in the  region that are not passed explicitly as parameters
+
+    The $private_vars, $firstprivate_vars, $shared_vars and $copyin_vars parameters
+    are a variadic list of values that specify the data sharing attribute of
+    those values.
+
+    The $allocators_vars and $allocate_vars parameters are a variadic list of values
+    that specify the memory allocator to be used to obtain storage for private values.
+
+  }];
+
+  let arguments = (ins   Optional<AnyType>:$num_threads_var,
+             OptionalAttr<ClauseDefault>:$default_val,
+             Variadic<AnyType>:$private_vars,
+             Variadic<AnyType>:$firstprivate_vars,
+             Variadic<AnyType>:$shared_vars,
+             Variadic<AnyType>:$copyin_vars,
+             Variadic<AnyType>:$allocate_vars,
+             Variadic<AnyType>:$allocators_vars);
+
+  let regions = (region AnyRegion:$region);
+}
+
 //===----------------------------------------------------------------------===//
 // 2.9.2 Workshare Loop Construct
 //===----------------------------------------------------------------------===//
@@ -258,6 +295,7 @@
 
   let assemblyFormat = [{ ( `(` $varList^ `:` type($varList) `)` )? attr-dict}];
 }
+
 //===----------------------------------------------------------------------===//
 // 2.14.5 target construct
 //===----------------------------------------------------------------------===//
@@ -293,9 +331,9 @@
   
   let builders = [
        OpBuilder<(ins "IntegerAttr":$if_expr,
-                       "IntegerAttr":$device,
-                       "IntegerAttr":$thread_limit,
-                       "UnitAttr":$nowait)>
+                      "IntegerAttr":$device,
+                      "IntegerAttr":$thread_limit,
+                      "UnitAttr":$nowait)>
   ];
 }
 
diff --git a/mlir/test/Dialect/OpenMP/ops.mlir b/mlir/test/Dialect/OpenMP/ops.mlir
--- a/mlir/test/Dialect/OpenMP/ops.mlir
+++ b/mlir/test/Dialect/OpenMP/ops.mlir
@@ -297,3 +297,20 @@
 
     return
 }
+
+
+//  CHECK-LABEL: omp_teams
+func @omp_teams(%data_var : memref<i32>, %num_threads : si32) -> () {
+
+    // CHECK: omp.teams
+    "omp.teams"(%num_threads, %data_var, %data_var, %data_var, %data_var) ({
+      // CHECK: omp.terminator
+      omp.terminator
+    }) {operand_segment_sizes = dense<[1,1,1,1,1,0,0]>: vector<7xi32>, default_val = "defshared"} : (si32, memref<i32>, memref<i32>, memref<i32>, memref<i32>) -> ()
+
+  // CHECK: omp.barrier
+    omp.barrier
+
+  return
+}
+