diff --git a/README.md b/README.md
index 3b4da2ab..5e2b0821 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ Do the following:
     import bitcoin
     bitcoin.SelectParams(NAME)
 
-Where NAME is one of 'testnet', 'mainnet', or 'regtest'. The chain currently
+Where NAME is one of 'testnet', 'mainnet', 'regtest' for bitcoin and 'ltc_mainnet', 'ltc_testnet' for litecoin. The chain currently
 selected is a global variable that changes behavior everywhere, just like in
 the Satoshi codebase.
 
diff --git a/bitcoin/__init__.py b/bitcoin/__init__.py
index e12eaf2f..ace4b6d8 100644
--- a/bitcoin/__init__.py
+++ b/bitcoin/__init__.py
@@ -27,7 +27,8 @@ class MainParams(bitcoin.core.CoreMainParams):
                  ('dashjr.org', 'dnsseed.bitcoin.dashjr.org'),
                  ('bitcoinstats.com', 'seed.bitcoinstats.com'),
                  ('xf2.org', 'bitseed.xf2.org'),
-                 ('bitcoin.jonasschnelli.ch', 'seed.bitcoin.jonasschnelli.ch'))
+                 ('bitcoin.jonasschnelli.ch', 'seed.bitcoin.jonasschnelli.ch'),
+                 ('btc.petertodd.org', "seed.btc.petertodd.org"))
     BASE58_PREFIXES = {'PUBKEY_ADDR':0,
                        'SCRIPT_ADDR':5,
                        'SECRET_KEY' :128}
@@ -53,6 +54,34 @@ class RegTestParams(bitcoin.core.CoreRegTestParams):
                        'SCRIPT_ADDR':196,
                        'SECRET_KEY' :239}
 
+class LitecoinMainParams(bitcoin.core.CoreMainParams):
+    NAME = 'ltc_mainnet'
+    MESSAGE_START = b'\xfb\xc0\xb6\xdb'
+    DEFAULT_PORT = 9333
+    RPC_PORT = 9332
+    DNS_SEEDS = (('litecoin.loshan.co.uk', 'seed-a.litecoin.loshan.co.uk'),
+                 ('thrasher.io', 'dnsseed.thrasher.io'),
+                 ('litecointools.com', 'dnsseed.litecointools.com'),
+                 ('litecoinpool.org', 'dnsseed.litecoinpool.org'),
+                 ('koin-project.com', 'dnsseed.koin-project.com'))
+    BASE58_PREFIXES = {'PUBKEY_ADDR':48,
+                       'SCRIPT_ADDR':5,
+                       'SECRET_KEY' :176}
+
+class LitecoinTestNetParams(bitcoin.core.CoreTestNetParams):
+    NAME = 'ltc_testnet'
+    MESSAGE_START = b'\xfd\xd2\xc8\xf1'
+    DEFAULT_PORT = 19335
+    RPC_PORT = 19332
+    DNS_SEEDS = (('litecointools.com', 'testnet-seed.litecointools.com'),
+                 ('litecoin.loshan.co.uk', 'seed-b.litecoin.loshan.co.uk'),
+                 ('thrasher.io', 'dnsseed-testnet.thrasher.io'))
+    BASE58_PREFIXES = {'PUBKEY_ADDR':111,
+                       'SCRIPT_ADDR':196,
+                       'SECRET_KEY' :239}
+
+
+
 """Master global setting for what chain params we're using.
 
 However, don't set this directly, use SelectParams() instead so as to set the
@@ -76,5 +105,13 @@ def SelectParams(name):
         params = bitcoin.core.coreparams = TestNetParams()
     elif name == 'regtest':
         params = bitcoin.core.coreparams = RegTestParams()
+    elif name == 'ltc_mainnet':
+        params = bitcoin.core.coreparams = LitecoinMainParams()
+    elif name == 'ltc_testnet':
+        params = bitcoin.core.coreparams = LitecoinTestNetParams()
     else:
         raise ValueError('Unknown chain %r' % name)
+
+def get_params():
+    global params
+    return params
diff --git a/bitcoin/core/__init__.py b/bitcoin/core/__init__.py
index 272bec5c..b3ea9b7d 100644
--- a/bitcoin/core/__init__.py
+++ b/bitcoin/core/__init__.py
@@ -768,9 +768,9 @@ def _SelectCoreParams(name):
     consensus-critical and general parameters are set properly.
     """
     global coreparams
-    if name == 'mainnet':
+    if name == 'mainnet' or name == 'ltc_mainnet':
         coreparams = CoreMainParams()
-    elif name == 'testnet':
+    elif name == 'testnet' or name == 'ltc_testnet':
         coreparams = CoreTestNetParams()
     elif name == 'regtest':
         coreparams = CoreRegTestParams()