diff --git a/Noostak_iOS/Noostak_iOS/Global/AppColorTextField.swift b/Noostak_iOS/Noostak_iOS/Global/Components/AppColorTextField.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/AppColorTextField.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/AppColorTextField.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/AppColorUnderlineTextField.swift b/Noostak_iOS/Noostak_iOS/Global/Components/AppColorUnderlineTextField.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/AppColorUnderlineTextField.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/AppColorUnderlineTextField.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/AppGrayTextField.swift b/Noostak_iOS/Noostak_iOS/Global/Components/AppGrayTextField.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/AppGrayTextField.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/AppGrayTextField.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/AppThemeButton.swift b/Noostak_iOS/Noostak_iOS/Global/Components/AppThemeButton.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/AppThemeButton.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/AppThemeButton.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/Components/AppToastView.swift b/Noostak_iOS/Noostak_iOS/Global/Components/AppToastView.swift
new file mode 100644
index 0000000..9e65de7
--- /dev/null
+++ b/Noostak_iOS/Noostak_iOS/Global/Components/AppToastView.swift
@@ -0,0 +1,108 @@
+//
+//  AppToast.swift
+//  Noostak_iOS
+//
+//  Created by 박민서 on 2/2/25.
+//
+
+import UIKit
+import SnapKit
+import Then
+import RxSwift
+import RxCocoa
+
+final class AppToastView: UIView {
+    
+    // MARK: Properties
+    private var status: Status
+    
+    // MARK: Views
+    private let messageLabel = UILabel()
+    private let backgroundView = UIView()
+    
+    // MARK: Init
+    init(status: Status) {
+        self.status = status
+        super.init(frame: .zero)
+        setUpHierarchy()
+        setUpUI()
+        setUpLayout()
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        backgroundView.layer.cornerRadius = backgroundView.frame.height / 2
+    }
+    
+    // MARK: setUpHierarchy
+    private func setUpHierarchy() {
+        [
+            backgroundView,
+            messageLabel
+        ].forEach { self.addSubview($0) }
+    }
+    
+    // MARK: setUpUI
+    private func setUpUI() {
+        messageLabel.do {
+            $0.attributedText = status.attributedText
+            $0.textAlignment = .center
+            $0.numberOfLines = 0
+        }
+        
+        backgroundView.do {
+            $0.backgroundColor = status.backgroundColor
+            $0.layer.cornerRadius = 21 // layoutSubviews에서 조정됩니다
+            $0.clipsToBounds = true
+        }
+    }
+    
+    // MARK: setUpLayout
+    private func setUpLayout() {
+        messageLabel.snp.makeConstraints {
+            $0.center.equalToSuperview()
+        }
+        
+        backgroundView.snp.makeConstraints {
+            $0.horizontalEdges.equalTo(messageLabel).inset(-20)
+            $0.verticalEdges.equalTo(messageLabel).inset(-12)
+        }
+    }
+}
+
+extension AppToastView {
+    enum Status {
+        case `default`(message: String)
+        case `error`(message: String)
+        
+        var backgroundColor: UIColor {
+            switch self {
+                
+            case .default:
+                return .appGray800
+            case .error:
+                return .appPink
+            }
+        }
+        
+        var attributedText: NSAttributedString {
+            switch self {
+                
+            case .default(let message):
+                return message.pretendardStyled(style: .c3_r, color: .appWhite)
+            case .error(let message):
+                // TODO: 폰트 시스템 C3_SB 추가되면 수정
+                return message.pretendardStyled(style: .c3_r, color: .appRed01)
+            }
+        }
+    }
+}
+
+#Preview {
+//    AppToastView(status: .default(message: "그룹 코드가 복사되었습니다"))
+    AppToastView(status: .error(message: "최대 7일까지 선택할 수 있어요"))
+}
diff --git a/Noostak_iOS/Noostak_iOS/Global/PaddedTextField.swift b/Noostak_iOS/Noostak_iOS/Global/Components/PaddedTextField.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/PaddedTextField.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/PaddedTextField.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/ProfileImagePicker.swift b/Noostak_iOS/Noostak_iOS/Global/Components/ProfileImagePicker.swift
similarity index 100%
rename from Noostak_iOS/Noostak_iOS/Global/ProfileImagePicker.swift
rename to Noostak_iOS/Noostak_iOS/Global/Components/ProfileImagePicker.swift
diff --git a/Noostak_iOS/Noostak_iOS/Global/Extension/String+.swift b/Noostak_iOS/Noostak_iOS/Global/Extension/String+.swift
index 9d81c28..02f546a 100644
--- a/Noostak_iOS/Noostak_iOS/Global/Extension/String+.swift
+++ b/Noostak_iOS/Noostak_iOS/Global/Extension/String+.swift
@@ -12,15 +12,16 @@ extension String {
     ///
     /// - Parameters:
     ///   - style: Pretendard 스타일 (e.g., `.h1_b`, `.h2_b`)
+    ///   - color: 적용할 텍스트 색상 (기본값: `.appGray800`)
     ///
     /// - Returns: NSAttributedString으로 반환된 텍스트
     ///
     /// - Usage:
     /// ```swift
-    /// let styledText = "Custom Styled Text".pretendardStyled(style: .h1_b)
+    /// let styledText = "Custom Styled Text".pretendardStyled(style: .h1_b, color: .red)
     /// label.attributedText = styledText
     /// ```
-    func pretendardStyled(style: UIFont.PretendardStyle) -> NSAttributedString {
+    func pretendardStyled(style: UIFont.PretendardStyle, color: UIColor = .appGray800) -> NSAttributedString {
         let font = style.font
         let lineHeight = font.pointSize * style.lineHeightUnit / 100
         let letterSpacing = style.letterSpacingUnit
@@ -31,7 +32,7 @@ extension String {
 
         let attributes: [NSAttributedString.Key: Any] = [
             .font: font,
-            .foregroundColor: UIColor.appGray800.cgColor,
+            .foregroundColor: color,
             .paragraphStyle: paragraphStyle,
             .kern: letterSpacing
         ]
diff --git a/Noostak_iOS/Noostak_iOS/Global/Utility/ToastManager.swift b/Noostak_iOS/Noostak_iOS/Global/Utility/ToastManager.swift
new file mode 100644
index 0000000..bf4a2a2
--- /dev/null
+++ b/Noostak_iOS/Noostak_iOS/Global/Utility/ToastManager.swift
@@ -0,0 +1,129 @@
+//
+//  ToastManager.swift
+//  Noostak_iOS
+//
+//  Created by 박민서 on 2/2/25.
+//
+
+import UIKit
+import SnapKit
+
+final class ToastManager {
+    static let shared = ToastManager()
+    
+    private init() {}
+
+    private var overlayView: UIView?
+    private var toastQueue: [(AppToastView, TimeInterval)] = []
+    private var isShowingToast = false
+        
+    /// 토스트 메시지를 화면에 표시합니다.
+        ///
+        /// - Parameters:
+        ///   - status: 표시할 토스트의 상태 (텍스트, 색상 등 지정)
+        ///   - duration: 토스트가 화면에 유지되는 시간 (기본값: 2.0초)
+        ///   - bottomFrom: 토스트가 화면 하단에서부터 얼마나 떨어져서 표시될지 지정 (기본값: 80pt)
+    func showToast(status: AppToastView.Status, duration: TimeInterval = 2.0, bottomFrom: CGFloat = 80) {
+        guard let windowScene = UIApplication.shared.connectedScenes
+            .first(where: { $0.activationState == .foregroundActive }) as? UIWindowScene,
+              let window = windowScene.windows.first else { return }
+        
+        // 기존 overlayView가 없으면 생성
+        if overlayView == nil {
+            self.overlayView = makeOverlayView(window: window)
+        }
+        
+        // 토스트 뷰 생성 후 큐에 추가
+        let toastView = makeToastView(status: status, bottomFrom: bottomFrom)
+        toastQueue.append((toastView, duration))
+        
+        // 현재 토스트가 표시 중이 아닐 때만 새로 표시
+        if !isShowingToast {
+            showNextToast()
+        }
+    }
+    
+    /// 큐에서 다음 토스트를 표시합니다
+    private func showNextToast() {
+        // 토스트 큐에 토스트 있을 때 다음으로
+        guard !toastQueue.isEmpty else {
+            isShowingToast = false
+            return
+        }
+        
+        isShowingToast = true
+        let (toastView, duration) = toastQueue.removeFirst() // FIFO
+        
+        // 애니메이션 (페이드 인 -> 유지 -> 페이드 아웃)
+        UIView.animate(withDuration: 0.3, animations: {
+            toastView.alpha = 1
+        }, completion: { _ in
+            DispatchQueue.main.asyncAfter(deadline: .now() + duration) {
+                self.dismissToast(toastView)
+            }
+        })
+    }
+    
+    /// overlay 뷰가 없는 경우 새로운 뷰를 생성합니다
+    private func makeOverlayView(window: UIWindow) -> UIView {
+        let overlay = UIView(frame: window.bounds)
+        overlay.backgroundColor = UIColor.clear
+        window.addSubview(overlay)
+        
+        // 제스처 추가 (화면 터치 시 모든 토스트 닫기)
+        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(dismissAllToasts))
+        overlay.addGestureRecognizer(tapGesture)
+        
+        return overlay
+    }
+    
+    /// 새로운 토스트 뷰를 생성합니다
+    private func makeToastView(status: AppToastView.Status, bottomFrom: CGFloat) -> AppToastView {
+        let toastView = AppToastView(status: status)
+        toastView.alpha = 0 // clear 상태로 추가
+        overlayView?.addSubview(toastView)
+        
+        toastView.snp.makeConstraints {
+            $0.centerX.equalToSuperview()
+            $0.bottom.equalToSuperview().inset(bottomFrom)
+        }
+
+        toastView.layoutIfNeeded()
+        return toastView
+    }
+    
+    /// 해당 토스트를 dimiss합니다 with Animation
+    /// 큐에서 해당 토스트를 삭제하고, 다음 토스트를 실행합니다
+    private func dismissToast(_ toastView: AppToastView) {
+        DispatchQueue.main.async {
+            UIView.animate(withDuration: 0.3, animations: {
+                toastView.alpha = 0
+            }, completion: { _ in
+                toastView.removeFromSuperview()
+                
+                // 다음 토스트 실행
+                if !self.toastQueue.isEmpty {
+                    self.showNextToast()
+                } else {
+                    // 모든 토스트가 사라지면 overlayView도 제거
+                    self.overlayView?.removeFromSuperview()
+                    self.overlayView = nil
+                    self.isShowingToast = false
+                }
+            })
+        }
+    }
+    
+    /// 큐에 쌓인 토스트를 일괄 삭제합니다
+    @objc private func dismissAllToasts() {
+        DispatchQueue.main.async {
+            for (toast, _) in self.toastQueue {
+                toast.removeFromSuperview()
+            }
+            self.toastQueue.removeAll()
+            self.overlayView?.removeFromSuperview()
+            self.overlayView = nil
+            self.isShowingToast = false
+        }
+    }
+}