diff --git a/legal/nuttcp/nuttcp-7.3.2.c b/legal/nuttcp/nuttcp-7.3.2.c
index bda5878..298d88b 100644
--- a/legal/nuttcp/nuttcp-7.3.2.c
+++ b/legal/nuttcp/nuttcp-7.3.2.c
@@ -2770,7 +2770,7 @@ main( int argc, char **argv )
 			}
 			af = res[stream_idx]->ai_family;
 /*
- * At the moment PF_ matches AF_ but are maintained seperate and the socket
+ * At the moment PF_ matches AF_ but are maintained separate and the socket
  * call is supposed to be PF_
  *
  * For now we set domain from the address family we looked up, but if these
diff --git a/vmtp/cfg.default.yaml b/vmtp/cfg.default.yaml
index 4253a8a..9488da4 100644
--- a/vmtp/cfg.default.yaml
+++ b/vmtp/cfg.default.yaml
@@ -202,7 +202,7 @@ os_dataplane_network: 'physnet1'
 
 ########################################
 # MongoDB pns database.
-# use "official_db" for offical runs only.
+# use "official_db" for official runs only.
 ########################################
 vmtp_db: "client_db"
 
diff --git a/vmtp/pns_mongo.py b/vmtp/pns_mongo.py
index ff17e69..eb38d9d 100644
--- a/vmtp/pns_mongo.py
+++ b/vmtp/pns_mongo.py
@@ -90,7 +90,7 @@ def search_documents_in_collection(collection, pattern):
     try:
         output = collection.find(pattern)
     except TypeError:
-        print "A TypeError occured. Invalid pattern: ", pattern
+        print "A TypeError occurred. Invalid pattern: ", pattern
         return None
 
     return output
diff --git a/vmtp/vmtp.py b/vmtp/vmtp.py
index d567ac0..11ab2c0 100755
--- a/vmtp/vmtp.py
+++ b/vmtp/vmtp.py
@@ -392,8 +392,8 @@ class VmtpTest(object):
     def measure_vm_flows(self):
         # scenarios need to be tested for both inter and intra node
         # 1. VM to VM on same data network
-        # 2. VM to VM on seperate networks fixed-fixed
-        # 3. VM to VM on seperate networks floating-floating
+        # 2. VM to VM on separate networks fixed-fixed
+        # 3. VM to VM on separate networks floating-floating
 
         # we should have 1 or 2 AZ to use (intra and inter-node)
         for client_az in self.client_az_list:
@@ -967,7 +967,7 @@ def decode_size_list(argname, size_list):
             pkt_sizes[i] = int(pkt_sizes[i])
     except ValueError:
         LOG.error('Invalid %s parameter. A valid input must be '
-                  'integers seperated by comma.' % argname)
+                  'integers separated by comma.' % argname)
         sys.exit(1)
     return pkt_sizes