diff --git a/libnixf/include/nixf/Basic/NodeKinds.inc b/libnixf/include/nixf/Basic/NodeKinds.inc
index f0bd23589..06fecacd1 100644
--- a/libnixf/include/nixf/Basic/NodeKinds.inc
+++ b/libnixf/include/nixf/Basic/NodeKinds.inc
@@ -41,5 +41,6 @@ EXPR(ExprBinOp)
 EXPR(ExprUnaryOp)
 EXPR(ExprIf)
 EXPR(ExprAssert)
+EXPR(ExprLet)
 
 #endif // EXPR
diff --git a/libnixf/include/nixf/Basic/Nodes/Expr.h b/libnixf/include/nixf/Basic/Nodes/Expr.h
index 74fe3866f..9ade208f4 100644
--- a/libnixf/include/nixf/Basic/Nodes/Expr.h
+++ b/libnixf/include/nixf/Basic/Nodes/Expr.h
@@ -126,4 +126,31 @@ class ExprAssert : public Expr {
   }
 };
 
+class ExprLet : public Expr {
+  // 'let' binds 'in' expr
+
+  std::unique_ptr<Misc> KwLet; // 'let', not null
+  std::unique_ptr<Binds> B;
+  std::unique_ptr<Misc> KwIn;
+  std::unique_ptr<Expr> E;
+
+public:
+  ExprLet(LexerCursorRange Range, std::unique_ptr<Misc> KwLet,
+          std::unique_ptr<Binds> B, std::unique_ptr<Misc> KwIn,
+          std::unique_ptr<Expr> E)
+      : Expr(NK_ExprLet, Range), KwLet(std::move(KwLet)), B(std::move(B)),
+        KwIn(std::move(KwIn)), E(std::move(E)) {
+    assert(this->KwLet && "KwLet should not be empty!");
+  }
+
+  [[nodiscard]] Binds *binds() const { return B.get(); }
+  [[nodiscard]] Expr *expr() const { return E.get(); }
+  [[nodiscard]] Misc &let() const { return *KwLet; }
+  [[nodiscard]] Misc *in() const { return KwIn.get(); }
+
+  [[nodiscard]] ChildVector children() const override {
+    return {KwLet.get(), B.get(), KwIn.get(), E.get()};
+  }
+};
+
 } // namespace nixf
diff --git a/libnixf/src/Parse/ParseExpr.cpp b/libnixf/src/Parse/ParseExpr.cpp
index 9fca4b5b5..9454e9e3b 100644
--- a/libnixf/src/Parse/ParseExpr.cpp
+++ b/libnixf/src/Parse/ParseExpr.cpp
@@ -112,6 +112,10 @@ std::unique_ptr<Expr> Parser::parseExpr() {
     return parseExprIf();
   case tok_kw_assert:
     return parseExprAssert();
+  case tok_kw_let:
+    if (peek(1).kind() != tok_l_curly)
+      return parseExprLet();
+    break;
   default:
     break;
   }
@@ -229,4 +233,42 @@ std::unique_ptr<ExprAssert> Parser::parseExprAssert() {
                                       std::move(Cond), std::move(Value));
 }
 
+std::unique_ptr<ExprLet> Parser::parseExprLet() {
+  LexerCursor LCur = lCur();
+  Token TokLet = peek();
+  assert(TokLet.kind() == tok_kw_let &&
+         "first token should be tok_kw_let in parseExprLet()");
+
+  auto Let = std::make_unique<Misc>(TokLet.range());
+
+  consume(); // 'let'
+
+  auto SyncIn = withSync(tok_kw_in);
+
+  assert(LastToken && "LastToken should be set after consume()");
+
+  auto Binds = parseBinds();
+
+  ExpectResult ExpKwIn = expect(tok_kw_in);
+
+  if (!ExpKwIn.ok())
+    // missing 'in'
+    return std::make_unique<ExprLet>(LexerCursorRange{LCur, LastToken->rCur()},
+                                     std::move(Let), std::move(Binds),
+                                     /*KwIn=*/nullptr,
+                                     /*E=*/nullptr);
+
+  auto In = std::make_unique<Misc>(ExpKwIn.tok().range());
+
+  consume(); // 'in'
+
+  auto E = parseExpr();
+  if (!E)
+    diagNullExpr(Diags, LastToken->rCur(), "let ... in");
+
+  return std::make_unique<ExprLet>(LexerCursorRange{LCur, LastToken->rCur()},
+                                   std::move(Let), std::move(Binds),
+                                   std::move(In), std::move(E));
+}
+
 } // namespace nixf
diff --git a/libnixf/src/Parse/ParserImpl.h b/libnixf/src/Parse/ParserImpl.h
index ba436c7f2..8aafd7d77 100644
--- a/libnixf/src/Parse/ParserImpl.h
+++ b/libnixf/src/Parse/ParserImpl.h
@@ -32,6 +32,7 @@ class LambdaArg;
 class ExprLambda;
 class ExprIf;
 class ExprAssert;
+class ExprLet;
 
 namespace detail {
 
@@ -336,6 +337,11 @@ class Parser {
   /// \endcode
   std::unique_ptr<ExprAssert> parseExprAssert();
 
+  /// \code
+  /// epxr_let : 'let' binds 'in' expr
+  /// \endcode
+  std::unique_ptr<ExprLet> parseExprLet();
+
   std::unique_ptr<Expr> parse() { return parseExpr(); }
 };
 
diff --git a/libnixf/test/Parse/ParseExpr.cpp b/libnixf/test/Parse/ParseExpr.cpp
index 69952e4e4..f0a8bcb08 100644
--- a/libnixf/test/Parse/ParseExpr.cpp
+++ b/libnixf/test/Parse/ParseExpr.cpp
@@ -275,4 +275,31 @@ TEST(Parser, ExprAssert) {
   ASSERT_EQ(Assert.value()->kind(), Node::NK_ExprString);
 }
 
+TEST(Parser, ExprLet) {
+  auto Src = R"(let x = 1; in 1)"sv;
+
+  std::vector<Diagnostic> Diags;
+  Parser P(Src, Diags);
+  auto AST = P.parseExpr();
+
+  ASSERT_TRUE(AST);
+  ASSERT_EQ(AST->kind(), Node::NK_ExprLet);
+
+  Binds &B = *static_cast<ExprLet *>(AST.get())->binds();
+  ASSERT_EQ(B.bindings().size(), 1);
+}
+
+TEST(Parser, ExprLet_Binds) {
+  auto Src = R"(let in 1)"sv;
+
+  std::vector<Diagnostic> Diags;
+  Parser P(Src, Diags);
+  auto AST = P.parseExpr();
+
+  ASSERT_TRUE(AST);
+  ASSERT_EQ(AST->kind(), Node::NK_ExprLet);
+
+  ASSERT_FALSE(static_cast<ExprLet *>(AST.get())->binds());
+}
+
 } // namespace