diff --git a/AK/Forward.h b/AK/Forward.h
index 081333ebd9..69f2222d7f 100644
--- a/AK/Forward.h
+++ b/AK/Forward.h
@@ -112,12 +112,6 @@ class NonnullRefPtr;
 template<typename T>
 class NonnullOwnPtr;
 
-template<typename T, size_t inline_capacity = 0>
-class NonnullOwnPtrVector;
-
-template<typename T, size_t inline_capacity = 0>
-class NonnullRefPtrVector;
-
 template<typename T>
 class Optional;
 
@@ -125,9 +119,6 @@ class Optional;
 template<typename T>
 class NonnullLockRefPtr;
 
-template<typename T, size_t inline_capacity = 0>
-class NonnullLockRefPtrVector;
-
 template<typename T>
 struct LockRefPtrTraits;
 
@@ -182,9 +173,7 @@ using AK::JsonValue;
 using AK::LittleEndianInputBitStream;
 using AK::LittleEndianOutputBitStream;
 using AK::NonnullOwnPtr;
-using AK::NonnullOwnPtrVector;
 using AK::NonnullRefPtr;
-using AK::NonnullRefPtrVector;
 using AK::Optional;
 using AK::OwnPtr;
 using AK::ReadonlyBytes;
@@ -212,7 +201,6 @@ using AK::Vector;
 using AK::LockRefPtr;
 using AK::LockRefPtrTraits;
 using AK::NonnullLockRefPtr;
-using AK::NonnullLockRefPtrVector;
 #    endif
 
 #endif
diff --git a/AK/NonnullOwnPtrVector.h b/AK/NonnullOwnPtrVector.h
deleted file mode 100644
index d6116a6893..0000000000
--- a/AK/NonnullOwnPtrVector.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/NonnullOwnPtr.h>
-#include <AK/NonnullPtrVector.h>
-
-namespace AK {
-
-template<typename T, size_t inline_capacity>
-class NonnullOwnPtrVector : public NonnullPtrVector<NonnullOwnPtr<T>, inline_capacity> {
-};
-
-}
-
-#if USING_AK_GLOBALLY
-using AK::NonnullOwnPtrVector;
-#endif
diff --git a/AK/NonnullPtrVector.h b/AK/NonnullPtrVector.h
deleted file mode 100644
index 1023b91521..0000000000
--- a/AK/NonnullPtrVector.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/Vector.h>
-
-namespace AK {
-
-template<typename PtrType, size_t inline_capacity = 0>
-class NonnullPtrVector : public Vector<PtrType, inline_capacity> {
-    using T = typename PtrType::ElementType;
-    using Base = Vector<PtrType, inline_capacity>;
-
-public:
-    NonnullPtrVector() = default;
-
-    NonnullPtrVector(Vector<PtrType>&& other)
-        : Base(static_cast<Base&&>(other))
-    {
-    }
-    NonnullPtrVector(Vector<PtrType> const& other)
-        : Base(static_cast<Base const&>(other))
-    {
-    }
-    NonnullPtrVector(std::initializer_list<PtrType> list)
-        : Base(list)
-    {
-    }
-
-    using Base::size;
-
-    using ConstIterator = SimpleIterator<NonnullPtrVector const, T>;
-    using Iterator = SimpleIterator<NonnullPtrVector, T>;
-    using ReverseIterator = SimpleReverseIterator<NonnullPtrVector, T>;
-    using ReverseConstIterator = SimpleReverseIterator<NonnullPtrVector const, T>;
-
-    ALWAYS_INLINE constexpr ConstIterator begin() const { return ConstIterator::begin(*this); }
-    ALWAYS_INLINE constexpr Iterator begin() { return Iterator::begin(*this); }
-    ALWAYS_INLINE constexpr ReverseIterator rbegin() { return ReverseIterator::rbegin(*this); }
-    ALWAYS_INLINE constexpr ReverseConstIterator rbegin() const { return ReverseConstIterator::rbegin(*this); }
-
-    ALWAYS_INLINE constexpr ConstIterator end() const { return ConstIterator::end(*this); }
-    ALWAYS_INLINE constexpr Iterator end() { return Iterator::end(*this); }
-    ALWAYS_INLINE constexpr ReverseIterator rend() { return ReverseIterator::rend(*this); }
-    ALWAYS_INLINE constexpr ReverseConstIterator rend() const { return ReverseConstIterator::rend(*this); }
-
-    ALWAYS_INLINE constexpr auto in_reverse() { return ReverseWrapper::in_reverse(*this); }
-    ALWAYS_INLINE constexpr auto in_reverse() const { return ReverseWrapper::in_reverse(*this); }
-
-    Optional<size_t> find_first_index(T const& value) const
-    {
-        if (auto const index = AK::find_index(begin(), end(), value);
-            index < size()) {
-            return index;
-        }
-        return {};
-    }
-
-    ALWAYS_INLINE PtrType& ptr_at(size_t index) const { return const_cast<PtrType&>(Base::at(index)); }
-
-    ALWAYS_INLINE T& at(size_t index) const { return const_cast<T&>(*Base::at(index)); }
-    ALWAYS_INLINE T& operator[](size_t index) const { return at(index); }
-    ALWAYS_INLINE T& first() const { return at(0); }
-    ALWAYS_INLINE T& last() const { return at(size() - 1); }
-
-private:
-    // NOTE: You can't use resize() on a NonnullFooPtrVector since making the vector
-    //       bigger would require being able to default-construct NonnullFooPtrs.
-    //       Instead, use shrink(new_size).
-    void resize(size_t) = delete;
-};
-
-}
diff --git a/AK/NonnullRefPtrVector.h b/AK/NonnullRefPtrVector.h
deleted file mode 100644
index a012e2d58e..0000000000
--- a/AK/NonnullRefPtrVector.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/NonnullPtrVector.h>
-#include <AK/NonnullRefPtr.h>
-
-namespace AK {
-
-template<typename T, size_t inline_capacity>
-class NonnullRefPtrVector : public NonnullPtrVector<NonnullRefPtr<T>, inline_capacity> {
-    using NonnullPtrVector<NonnullRefPtr<T>, inline_capacity>::NonnullPtrVector;
-};
-
-}
-
-#if USING_AK_GLOBALLY
-using AK::NonnullRefPtrVector;
-#endif
diff --git a/Kernel/Library/NonnullLockRefPtrVector.h b/Kernel/Library/NonnullLockRefPtrVector.h
deleted file mode 100644
index dea5ad2fc0..0000000000
--- a/Kernel/Library/NonnullLockRefPtrVector.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/NonnullPtrVector.h>
-#include <Kernel/Library/NonnullLockRefPtr.h>
-
-namespace AK {
-
-template<typename T, size_t inline_capacity>
-class NonnullLockRefPtrVector : public NonnullPtrVector<NonnullLockRefPtr<T>, inline_capacity> {
-    using NonnullPtrVector<NonnullLockRefPtr<T>, inline_capacity>::NonnullPtrVector;
-};
-
-}
-
-using AK::NonnullLockRefPtrVector;