diff --git a/bitcoin/__init__.py b/bitcoin/__init__.py
index de56cd5d..7960acaa 100644
--- a/bitcoin/__init__.py
+++ b/bitcoin/__init__.py
@@ -45,6 +45,27 @@ class RegTestParams(bitcoin.core.CoreRegTestParams):
                        'SCRIPT_ADDR':196,
                        'SECRET_KEY' :239}
 
+class DogeMainParams(bitcoin.core.CoreDogeMainParams):
+    MESSAGE_START = b'\xc0\xc0\xc0\xc0'
+    DEFAULT_PORT = 22556
+    RPC_PORT = 22555
+    DNS_SEEDS = (('dogecoin.com', 'seed.dogecoin.com'),
+                 ('mophides.com', 'seed.mophides.com'),
+                 ('dglibrary.org', 'seed.dglibrary.org'),
+                 ('dogechain.info', 'seed.dogechain.info'))
+    BASE58_PREFIXES = {'PUBKEY_ADDR':30,
+                       'SCRIPT_ADDR':22,
+                       'SECRET_KEY' :158}
+
+class DogeTestNetParams(bitcoin.core.CoreDogeTestNetParams):
+    MESSAGE_START = b'\xfc\xc1\xb7\xdc'
+    DEFAULT_PORT = 44556
+    RPC_PORT = 44555
+    DNS_SEEDS = (('lionservers.de', 'testdoge-seed-static.lionservers.de'))
+    BASE58_PREFIXES = {'PUBKEY_ADDR':113,
+                       'SCRIPT_ADDR':196,
+                       'SECRET_KEY' :241}
+
 """Master global setting for what chain params we're using.
 
 However, don't set this directly, use SelectParams() instead so as to set the
@@ -53,7 +74,7 @@ class RegTestParams(bitcoin.core.CoreRegTestParams):
 #params = bitcoin.core.coreparams = MainParams()
 params = MainParams()
 
-def SelectParams(name):
+def SelectParams(name, coin = 'BTC'):
     """Select the chain parameters to use
 
     name is one of 'mainnet', 'testnet', or 'regtest'
@@ -61,12 +82,22 @@ def SelectParams(name):
     Default chain is 'mainnet'
     """
     global params
-    bitcoin.core._SelectCoreParams(name)
-    if name == 'mainnet':
-        params = bitcoin.core.coreparams = MainParams()
-    elif name == 'testnet':
-        params = bitcoin.core.coreparams = TestNetParams()
-    elif name == 'regtest':
-        params = bitcoin.core.coreparams = RegTestParams()
+    bitcoin.core._SelectCoreParams(name, coin)
+    if coin == 'BTC':
+        if name == 'mainnet':
+            params = bitcoin.core.coreparams = MainParams()
+        elif name == 'testnet':
+            params = bitcoin.core.coreparams = TestNetParams()
+        elif name == 'regtest':
+            params = bitcoin.core.coreparams = RegTestParams()
+        else:
+            raise ValueError('Unknown Bitcoin chain %r' % name)
+    elif coin == 'DOGE':
+        if name == 'mainnet':
+            params = bitcoin.core.coreparams = DogeMainParams()
+        elif name == 'testnet':
+            params = bitcoin.core.coreparams = DogeTestNetParams()
+        else:
+            raise ValueError('Unknown Dogecoin chain %r' % name)
     else:
-        raise ValueError('Unknown chain %r' % name)
+        raise ValueError('Unknown coin %r' % coin)
diff --git a/bitcoin/core/__init__.py b/bitcoin/core/__init__.py
index ce0c0930..ddf6e17f 100644
--- a/bitcoin/core/__init__.py
+++ b/bitcoin/core/__init__.py
@@ -558,24 +558,44 @@ class CoreRegTestParams(CoreTestNetParams):
     SUBSIDY_HALVING_INTERVAL = 150
     PROOF_OF_WORK_LIMIT = 2**256-1 >> 1
 
+class CoreDogeMainParams(CoreChainParams):
+    NAME = 'dogecoin_main'
+    GENESIS_BLOCK = CBlock.deserialize(x('010000000000000000000000000000000000000000000000000000000000000000000000696ad20e2dd4365c7459b4a4a5af743d5e92c6da3229e6532cd605f6533f2a5b24a6a152f0ff0f1e678601000101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1004ffff001d0104084e696e746f6e646fffffffff010058850c020000004341040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9ac00000000'))
+    SUBSIDY_HALVING_INTERVAL = 100000
+    PROOF_OF_WORK_LIMIT = 2**256-1 >> 32
+
+class CoreDogeTestNetParams(CoreDogeMainParams):
+    NAME = 'dogecoin_test'
+    GENESIS_BLOCK = CBlock.deserialize(x('010000000000000000000000000000000000000000000000000000000000000000000000696ad20e2dd4365c7459b4a4a5af743d5e92c6da3229e6532cd605f6533f2a5bb9a7f052f0ff0f1ef7390f000101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1004ffff001d0104084e696e746f6e646fffffffff010058850c020000004341040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9ac00000000'))
+
 """Master global setting for what core chain params we're using"""
 coreparams = CoreMainParams()
 
-def _SelectCoreParams(name):
+def _SelectCoreParams(name, coin='BTC'):
     """Select the core chain parameters to use
 
     Don't use this directly, use bitcoin.SelectParams() instead so both
     consensus-critical and general parameters are set properly.
     """
     global coreparams
-    if name == 'mainnet':
-        coreparams = CoreMainParams()
-    elif name == 'testnet':
-        coreparams = CoreTestNetParams()
-    elif name == 'regtest':
-        coreparams = CoreRegTestParams()
+    if coin == 'BTC':
+        if name == 'mainnet':
+            coreparams = CoreMainParams()
+        elif name == 'testnet':
+            coreparams = CoreTestNetParams()
+        elif name == 'regtest':
+            coreparams = CoreRegTestParams()
+        else:
+            raise ValueError('Unknown Bitcoin chain %r' % name)
+    elif coin == 'DOGE':
+        if name == 'mainnet':
+            coreparams = CoreDogeMainParams()
+        elif name == 'testnet':
+            coreparams = CoreDogeTestNetParams()
+        else:
+            raise ValueError('Unknown Dogecoin chain %r' % name)
     else:
-        raise ValueError('Unknown chain %r' % name)
+        raise ValueError('Unknown coin %r' % coin)
 
 
 class CheckTransactionError(ValidationError):