diff --git a/internal/lsp/source/completion.go b/internal/lsp/source/completion.go
index 79787bec16..8ece709bd5 100644
--- a/internal/lsp/source/completion.go
+++ b/internal/lsp/source/completion.go
@@ -603,6 +603,8 @@ func (c *completer) lexical() error {
 	}
 	scopes = append(scopes, c.pkg.GetTypes().Scope(), types.Universe)
 
+	builtinIota := types.Universe.Lookup("iota")
+
 	// Track seen variables to avoid showing completions for shadowed variables.
 	// This works since we look at scopes from innermost to outermost.
 	seen := make(map[string]struct{})
@@ -635,6 +637,11 @@ func (c *completer) lexical() error {
 				}
 			}
 
+			// Don't suggest "iota" outside of const decls.
+			if obj == builtinIota && !c.inConstDecl() {
+				continue
+			}
+
 			// If we haven't already added a candidate for an object with this name.
 			if _, ok := seen[obj.Name()]; !ok {
 				seen[obj.Name()] = struct{}{}
@@ -665,6 +672,15 @@ func (c *completer) lexical() error {
 	return nil
 }
 
+func (c *completer) inConstDecl() bool {
+	for _, n := range c.path {
+		if decl, ok := n.(*ast.GenDecl); ok && decl.Tok == token.CONST {
+			return true
+		}
+	}
+	return false
+}
+
 // structLiteralFieldName finds completions for struct field names inside a struct literal.
 func (c *completer) structLiteralFieldName() error {
 	clInfo := c.enclosingCompositeLiteral
diff --git a/internal/lsp/testdata/builtins/builtins.go b/internal/lsp/testdata/builtins/builtins.go
index 14fd14417c..d9d384313b 100644
--- a/internal/lsp/testdata/builtins/builtins.go
+++ b/internal/lsp/testdata/builtins/builtins.go
@@ -1,7 +1,7 @@
 package builtins
 
 func _() {
-	//@complete("", append, bool, byte, cap, close, complex, complex128, complex64, copy, delete, error, _false, float32, float64, imag, int, int16, int32, int64, int8, iota, len, make, new, _nil, panic, print, println, real, recover, rune, string, _true, uint, uint16, uint32, uint64, uint8, uintptr)
+	//@complete("", append, bool, byte, cap, close, complex, complex128, complex64, copy, delete, error, _false, float32, float64, imag, int, int16, int32, int64, int8, len, make, new, _nil, panic, print, println, real, recover, rune, string, _true, uint, uint16, uint32, uint64, uint8, uintptr)
 }
 
 /* Create markers for builtin types. Only for use by this test.
diff --git a/internal/lsp/testdata/builtins/iota.go b/internal/lsp/testdata/builtins/iota.go
new file mode 100644
index 0000000000..4442724596
--- /dev/null
+++ b/internal/lsp/testdata/builtins/iota.go
@@ -0,0 +1,13 @@
+package builtins
+
+func _() {
+	const (
+		foo = iota //@complete(" //", iota)
+	)
+
+	iota //@complete(" //")
+
+	var iota int //@item(iotaVar, "iota", "int", "var")
+
+	iota //@complete(" //", iotaVar)
+}
diff --git a/internal/lsp/tests/tests.go b/internal/lsp/tests/tests.go
index 67f155a29d..ffa49007de 100644
--- a/internal/lsp/tests/tests.go
+++ b/internal/lsp/tests/tests.go
@@ -29,7 +29,7 @@ import (
 // We hardcode the expected number of test cases to ensure that all tests
 // are being executed. If a test is added, this number must be changed.
 const (
-	ExpectedCompletionsCount       = 160
+	ExpectedCompletionsCount       = 163
 	ExpectedCompletionSnippetCount = 16
 	ExpectedDiagnosticsCount       = 21
 	ExpectedFormatCount            = 6