diff --git a/apps/azc/src/cli.cpp b/apps/azc/src/cli.cpp
index f3d9491d..12a76c6b 100644
--- a/apps/azc/src/cli.cpp
+++ b/apps/azc/src/cli.cpp
@@ -1,12 +1,12 @@
 #include <CLI/CLI.hpp>
 #include <azc/cli.hpp>
-#include <azc/source.hpp>
+#include <azin/source.hpp>
 #include <cstdio> // NOLINT
 #include <filesystem>
-#include <azc/lexer.hpp>
-#include <azc/token.hpp>
-#include <azc/diagnostic.hpp>
-#include <azc/diagnostic_engine.hpp>
+#include <azin/lexer.hpp>
+#include <azin/token.hpp>
+#include <azin/diagnostic.hpp>
+#include <azin/diagnostic_engine.hpp>
 
 // Disable the unreachable code warning for MSVC
 #if defined(_MSC_VER) && !defined(__llvm__)
diff --git a/libs/frontend/CMakeLists.txt b/libs/frontend/CMakeLists.txt
index 1b717573..3b861657 100644
--- a/libs/frontend/CMakeLists.txt
+++ b/libs/frontend/CMakeLists.txt
@@ -1,6 +1,6 @@
 add_library(frontend_source STATIC
         source/src/source.cpp
-        source/include/azc/source.hpp
+        source/include/azin/source.hpp
 )
 
 add_library(Azin::Frontend::Source ALIAS frontend_source)
@@ -53,7 +53,7 @@ target_link_libraries(frontend_diagnostic PRIVATE
 
 add_library(frontend_lexer STATIC
         lexer/src/lexer.cpp
-        lexer/include/azc/lexer.hpp
+        lexer/include/azin/lexer.hpp
 )
 
 add_library(Azin::Frontend::Lexer ALIAS frontend_lexer)
@@ -74,7 +74,7 @@ target_link_libraries(frontend_lexer PUBLIC
 
 add_library(frontend_parser STATIC
         parser/src/parser.cpp
-        parser/include/azc/parser.hpp
+        parser/include/azin/parser.hpp
 )
 
 add_library(Azin::Frontend::Parser ALIAS frontend_parser)
diff --git a/libs/frontend/diagnostic/include/azc/diagnostic.hpp b/libs/frontend/diagnostic/include/azin/diagnostic.hpp
similarity index 100%
rename from libs/frontend/diagnostic/include/azc/diagnostic.hpp
rename to libs/frontend/diagnostic/include/azin/diagnostic.hpp
diff --git a/libs/frontend/diagnostic/include/azc/diagnostic_engine.hpp b/libs/frontend/diagnostic/include/azin/diagnostic_engine.hpp
similarity index 92%
rename from libs/frontend/diagnostic/include/azc/diagnostic_engine.hpp
rename to libs/frontend/diagnostic/include/azin/diagnostic_engine.hpp
index c32341e4..912bf41c 100644
--- a/libs/frontend/diagnostic/include/azc/diagnostic_engine.hpp
+++ b/libs/frontend/diagnostic/include/azin/diagnostic_engine.hpp
@@ -3,7 +3,7 @@
 #include <vector>
 #include <span>
 
-#include <azc/diagnostic.hpp>
+#include <azin/diagnostic.hpp>
 
 namespace azc::frontend {
 
diff --git a/libs/frontend/diagnostic/src/diagnostic_engine.cpp b/libs/frontend/diagnostic/src/diagnostic_engine.cpp
index f76cc424..7b7735d7 100644
--- a/libs/frontend/diagnostic/src/diagnostic_engine.cpp
+++ b/libs/frontend/diagnostic/src/diagnostic_engine.cpp
@@ -1,4 +1,4 @@
-#include <azc/diagnostic_engine.hpp>
+#include <azin/diagnostic_engine.hpp>
 
 #include <span>
 #include <fmt/format.h>
diff --git a/libs/frontend/lexer/include/azc/lexer.hpp b/libs/frontend/lexer/include/azin/lexer.hpp
similarity index 96%
rename from libs/frontend/lexer/include/azc/lexer.hpp
rename to libs/frontend/lexer/include/azin/lexer.hpp
index 8a15f3e5..a02b2147 100644
--- a/libs/frontend/lexer/include/azc/lexer.hpp
+++ b/libs/frontend/lexer/include/azin/lexer.hpp
@@ -3,8 +3,8 @@
 #include <string_view>
 #include <vector>
 
-#include <azc/token.hpp>
-#include <azc/diagnostic_engine.hpp>
+#include <azin/token.hpp>
+#include <azin/diagnostic_engine.hpp>
 
 namespace azc::frontend {
 
diff --git a/libs/frontend/lexer/src/lexer.cpp b/libs/frontend/lexer/src/lexer.cpp
index c690ed11..02b84fb1 100644
--- a/libs/frontend/lexer/src/lexer.cpp
+++ b/libs/frontend/lexer/src/lexer.cpp
@@ -1,10 +1,10 @@
 #include <cctype>
-#include <azc/token.hpp>
-#include <azc/lexer.hpp>
+#include <azin/token.hpp>
+#include <azin/lexer.hpp>
 #include <fmt/format.h>
 #include <string_view>
-#include <azc/diagnostic.hpp>
-#include <azc/diagnostic_engine.hpp>
+#include <azin/diagnostic.hpp>
+#include <azin/diagnostic_engine.hpp>
 
 namespace azc::frontend {
 
diff --git a/libs/frontend/parser/include/azc/parser.hpp b/libs/frontend/parser/include/azin/parser.hpp
similarity index 100%
rename from libs/frontend/parser/include/azc/parser.hpp
rename to libs/frontend/parser/include/azin/parser.hpp
diff --git a/libs/frontend/parser/src/parser.cpp b/libs/frontend/parser/src/parser.cpp
index 7fcaf0c3..f394d013 100644
--- a/libs/frontend/parser/src/parser.cpp
+++ b/libs/frontend/parser/src/parser.cpp
@@ -2,4 +2,4 @@
 // Created by alexs on 6/26/2026.
 //
 
-#include "../include/azc/parser.hpp"
+#include "../include/azin/parser.hpp"
diff --git a/libs/frontend/source/include/azc/source.hpp b/libs/frontend/source/include/azin/source.hpp
similarity index 100%
rename from libs/frontend/source/include/azc/source.hpp
rename to libs/frontend/source/include/azin/source.hpp
diff --git a/libs/frontend/source/src/source.cpp b/libs/frontend/source/src/source.cpp
index 418eb959..17a06499 100644
--- a/libs/frontend/source/src/source.cpp
+++ b/libs/frontend/source/src/source.cpp
@@ -1,4 +1,4 @@
-#include <azc/source.hpp>
+#include <azin/source.hpp>
 #include <cstddef>
 #include <filesystem>
 #include <fstream>
diff --git a/libs/frontend/token/include/azc/token.hpp b/libs/frontend/token/include/azin/token.hpp
similarity index 100%
rename from libs/frontend/token/include/azc/token.hpp
rename to libs/frontend/token/include/azin/token.hpp