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diff --git a/src/node/context.h b/src/node/context.h
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+++ b/src/node/context.h
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+// Copyright (c) 2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_CONTEXT_H
+#define BITCOIN_NODE_CONTEXT_H
+
+#include <memory>
+#include <vector>
+
+class BanMan;
+class CConnman;
+class PeerLogicValidation;
+namespace interfaces {
+class Chain;
+class ChainClient;
+} // namespace interfaces
+
+//! NodeContext struct containing references to chain state and connection
+//! state.
+//!
+//! This is used by init, rpc, and test code to pass object references around
+//! without needing to declare the same variables and parameters repeatedly, or
+//! to use globals. More variables could be added to this struct (particularly
+//! references to validation and mempool objects) to eliminate use of globals
+//! and make code more modular and testable. The struct isn't intended to have
+//! any member functions. It should just be a collection of references that can
+//! be used without pulling in unwanted dependencies or functionality.
+struct NodeContext
+{
+    std::unique_ptr<CConnman> connman;
+    std::unique_ptr<PeerLogicValidation> peer_logic;
+    std::unique_ptr<BanMan> banman;
+    std::unique_ptr<interfaces::Chain> chain;
+    std::vector<std::unique_ptr<interfaces::ChainClient>> chain_clients;
+
+    //! Declare default constructor and destructor that are not inline, so code
+    //! instantiating the NodeContext struct doesn't need to #include class
+    //! definitions for all the unique_ptr members.
+    NodeContext();
+    ~NodeContext();
+};
+
+#endif // BITCOIN_NODE_CONTEXT_H