diff --git a/src/GitHub.hs b/src/GitHub.hs
index da5e9f2b..b1f4849b 100644
--- a/src/GitHub.hs
+++ b/src/GitHub.hs
@@ -177,6 +177,7 @@ module GitHub (
     membersOfWithR,
     isMemberOfR,
     orgInvitationsR,
+    orgMembershipR,
     -- ** Outside Collaborators
     -- | See <https://developer.github.com/v3/orgs/outside_collaborators/>
     --
diff --git a/src/GitHub/Data/Definitions.hs b/src/GitHub/Data/Definitions.hs
index 0d56171b..9753436e 100644
--- a/src/GitHub/Data/Definitions.hs
+++ b/src/GitHub/Data/Definitions.hs
@@ -238,6 +238,63 @@ type QueryString = [(BS.ByteString, Maybe BS.ByteString)]
 -- | Count of elements
 type Count = Int
 
+
+
+data MembershipRole
+    = MembershipRoleMember
+    | MembershipRoleAdmin
+    | MembershipRoleBillingManager
+  deriving
+    (Eq, Ord, Show, Enum, Bounded, Generic, Typeable, Data)
+
+instance NFData MembershipRole where rnf = genericRnf
+instance Binary MembershipRole
+
+instance FromJSON MembershipRole where
+    parseJSON = withText "MembershipRole" $ \t -> case T.toLower t of
+        "member"   -> pure MembershipRoleMember
+        "admin"           -> pure MembershipRoleAdmin
+        "billing_manager" -> pure MembershipRoleBillingManager
+        _                 -> fail $ "Unknown MembershipRole: " <> T.unpack t
+
+data MembershipState
+    = MembershipPending
+    | MembershipActive
+    deriving (Show, Data, Typeable, Eq, Ord, Generic)
+
+instance NFData MembershipState where rnf = genericRnf
+instance Binary MembershipState
+
+instance FromJSON MembershipState where
+    parseJSON = withText "MembershipState" $ \t -> case T.toLower t of
+        "active"  -> pure MembershipActive
+        "pending" -> pure MembershipPending
+        _         -> fail $ "Unknown MembershipState: " <> T.unpack t
+
+
+data Membership = Membership
+    { membershipUrl             :: !URL
+    , membershipState           :: !MembershipState
+    , membershipRole            :: !MembershipRole
+    , membershipOrganizationUrl :: !URL
+    , membershipOrganization    :: !SimpleOrganization
+    , membershipUser            :: !SimpleUser
+    }
+    deriving (Show, Data, Typeable, Eq, Ord, Generic)
+
+instance NFData Membership where rnf = genericRnf
+instance Binary Membership
+
+instance FromJSON Membership where
+    parseJSON = withObject "Membership" $ \o -> Membership
+        <$> o .: "url"
+        <*> o .: "state"
+        <*> o .: "role"
+        <*> o .: "organization_url"
+        <*> o .: "organization"
+        <*> o .: "user"
+
+
 -------------------------------------------------------------------------------
 -- IssueNumber
 -------------------------------------------------------------------------------
diff --git a/src/GitHub/Endpoints/Organizations/Members.hs b/src/GitHub/Endpoints/Organizations/Members.hs
index 26a8f4c4..9b41cc13 100644
--- a/src/GitHub/Endpoints/Organizations/Members.hs
+++ b/src/GitHub/Endpoints/Organizations/Members.hs
@@ -10,6 +10,7 @@ module GitHub.Endpoints.Organizations.Members (
     membersOfWithR,
     isMemberOfR,
     orgInvitationsR,
+    orgMembershipR,
     module GitHub.Data,
     ) where
 
@@ -51,3 +52,10 @@ isMemberOfR user org =
 -- See <https://developer.github.com/v3/orgs/members/#list-pending-organization-invitations>
 orgInvitationsR :: Name Organization -> FetchCount -> Request 'RA (Vector Invitation)
 orgInvitationsR org = pagedQuery ["orgs", toPathPart org, "invitations"] []
+
+-- | Get user membership information in an organization
+--
+-- See <https://docs.github.com/en/rest/orgs/members#get-organization-membership-for-a-user>
+orgMembershipR :: Name User -> Name Organization -> Request 'RA Membership
+orgMembershipR user org =
+    Query [ "orgs", toPathPart org, "memberships", toPathPart user ] []
\ No newline at end of file