diff --git a/integration-tests/api/__tests__/admin/customer-groups.js b/integration-tests/api/__tests__/admin/customer-groups.js
index 0561f8e72d..f3cd65de4b 100644
--- a/integration-tests/api/__tests__/admin/customer-groups.js
+++ b/integration-tests/api/__tests__/admin/customer-groups.js
@@ -85,4 +85,88 @@ describe("/admin/customer-groups", () => {
         })
     })
   })
+
+  describe("GET /admin/customer-groups", () => {
+    beforeEach(async () => {
+      try {
+        await adminSeeder(dbConnection)
+        await customerSeeder(dbConnection)
+      } catch (err) {
+        console.log(err)
+        throw err
+      }
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      await db.teardown()
+    })
+
+    it("gets customer group", async () => {
+      const api = useApi()
+
+      const id = "customer-group-1"
+
+      const response = await api.get(`/admin/customer-groups/${id}`, {
+        headers: {
+          Authorization: "Bearer test_token",
+        },
+      })
+
+      expect(response.status).toEqual(200)
+      expect(response.data.customerGroup).toEqual(
+        expect.objectContaining({
+          id: "customer-group-1",
+          name: "vip-customers",
+        })
+      )
+      expect(response.data.customerGroup).not.toHaveProperty("customers")
+    })
+
+    it("gets customer group with `customers` prop", async () => {
+      const api = useApi()
+
+      const id = "customer-group-1"
+
+      const response = await api.get(
+        `/admin/customer-groups/${id}?expand=customers`,
+        {
+          headers: {
+            Authorization: "Bearer test_token",
+          },
+        }
+      )
+
+      expect(response.status).toEqual(200)
+      expect(response.data.customerGroup).toEqual(
+        expect.objectContaining({
+          id: "customer-group-1",
+          name: "vip-customers",
+        })
+      )
+      expect(response.data.customerGroup.customers).toEqual([])
+    })
+
+    it("throws error when a customer group doesn't exist", async () => {
+      expect.assertions(3)
+
+      const api = useApi()
+
+      const id = "test-group-000"
+
+      await api
+        .get(`/admin/customer-groups/${id}`, {
+          headers: {
+            Authorization: "Bearer test_token",
+          },
+        })
+        .catch((err) => {
+          expect(err.response.status).toEqual(404)
+          expect(err.response.data.type).toEqual("not_found")
+          expect(err.response.data.message).toEqual(
+            `CustomerGroup with ${id} was not found`
+          )
+        })
+    })
+  })
 })
diff --git a/packages/medusa/src/api/routes/admin/customer-groups/__tests__/get-customer-group.ts b/packages/medusa/src/api/routes/admin/customer-groups/__tests__/get-customer-group.ts
new file mode 100644
index 0000000000..9fd1ecd201
--- /dev/null
+++ b/packages/medusa/src/api/routes/admin/customer-groups/__tests__/get-customer-group.ts
@@ -0,0 +1,33 @@
+import { IdMap } from "medusa-test-utils"
+import { request } from "../../../../../helpers/test-request"
+import { CustomerGroupServiceMock } from "../../../../../services/__mocks__/customer-group"
+
+describe("GET /customer-groups", () => {
+  let subject
+  const id = "123"
+
+  beforeAll(async () => {
+    subject = await request(
+      "GET",
+      `/admin/customer-groups/${id}?expand=customers`,
+      {
+        adminSession: {
+          jwt: {
+            userId: IdMap.getId("admin_user"),
+          },
+        },
+      }
+    )
+  })
+
+  it("returns 200", () => {
+    expect(subject.status).toEqual(200)
+  })
+
+  it("calls CustomerGroupService get", () => {
+    expect(CustomerGroupServiceMock.retrieve).toHaveBeenCalledTimes(1)
+    expect(CustomerGroupServiceMock.retrieve).toHaveBeenCalledWith(id, {
+      relations: ["customers"],
+    })
+  })
+})
diff --git a/packages/medusa/src/api/routes/admin/customer-groups/get-customer-group.ts b/packages/medusa/src/api/routes/admin/customer-groups/get-customer-group.ts
new file mode 100644
index 0000000000..ecbad1af32
--- /dev/null
+++ b/packages/medusa/src/api/routes/admin/customer-groups/get-customer-group.ts
@@ -0,0 +1,51 @@
+import { CustomerGroupService } from "../../../../services"
+import { FindParams } from "../../../../types/common"
+import { validator } from "../../../../utils/validator"
+import { defaultAdminCustomerGroupsRelations } from "."
+
+/**
+ * @oas [get] /customer-group/{id}
+ * operationId: "GetCustomerGroupsGroup"
+ * summary: "Retrieve a CustomerGroup"
+ * description: "Retrieves a Customer Group."
+ * x-authenticated: true
+ * parameters:
+ *   - (path) id=* {string} The id of the Customer Group.
+ * tags:
+ *   - CustomerGroup
+ * responses:
+ *   200:
+ *     description: OK
+ *     content:
+ *       application/json:
+ *         schema:
+ *           properties:
+ *             customerGroup:
+ *               $ref: "#/components/schemas/customer-group"
+ */
+export default async (req, res) => {
+  const { id } = req.params
+
+  const validated = await validator(AdminGetCustomerGroupsGroupParams, req.query)
+
+  const customerGroupService: CustomerGroupService = req.scope.resolve(
+    "customerGroupService"
+  )
+
+  let expandFields: string[] = []
+  if (validated.expand) {
+    expandFields = validated.expand.split(",")
+  }
+
+  const findConfig = {
+    relations: expandFields.length
+      ? expandFields
+      : defaultAdminCustomerGroupsRelations,
+  }
+
+  const customerGroup = await customerGroupService.retrieve(id, findConfig)
+
+  res.json({ customerGroup })
+}
+
+export class AdminGetCustomerGroupsGroupParams extends FindParams {}
diff --git a/packages/medusa/src/api/routes/admin/customer-groups/index.ts b/packages/medusa/src/api/routes/admin/customer-groups/index.ts
index 91db467403..983a90a236 100644
--- a/packages/medusa/src/api/routes/admin/customer-groups/index.ts
+++ b/packages/medusa/src/api/routes/admin/customer-groups/index.ts
@@ -8,6 +8,7 @@ const route = Router()
 export default (app) => {
   app.use("/customer-groups", route)
 
+  route.get("/:id", middlewares.wrap(require("./get-customer-group").default))
   route.post("/", middlewares.wrap(require("./create-customer-group").default))
   return app
 }
@@ -22,4 +23,6 @@ export type AdminCustomerGroupsListRes = PaginatedResponse & {
   customer_groups: CustomerGroup[]
 }
 
+export const defaultAdminCustomerGroupsRelations = []
+
 export * from "./create-customer-group"
diff --git a/packages/medusa/src/services/__mocks__/customer-group.js b/packages/medusa/src/services/__mocks__/customer-group.js
index db92b9a8e5..0a50f82cb8 100644
--- a/packages/medusa/src/services/__mocks__/customer-group.js
+++ b/packages/medusa/src/services/__mocks__/customer-group.js
@@ -6,6 +6,10 @@ export const CustomerGroupServiceMock = {
   create: jest.fn().mockImplementation((f) => {
     return Promise.resolve(f)
   }),
+
+  retrieve: jest.fn().mockImplementation((f) => {
+    return Promise.resolve(f)
+  }),
 }
 
 const mock = jest.fn().mockImplementation(() => {
@@ -13,3 +17,4 @@ const mock = jest.fn().mockImplementation(() => {
 })
 
 export default mock
+
diff --git a/packages/medusa/src/services/customer-group.ts b/packages/medusa/src/services/customer-group.ts
index cb1d98fa8f..bdac9dab29 100644
--- a/packages/medusa/src/services/customer-group.ts
+++ b/packages/medusa/src/services/customer-group.ts
@@ -41,6 +41,25 @@ class CustomerGroupService extends BaseService {
     return cloned
   }
 
+  async retrieve(id: string, config = {}): Promise<CustomerGroup> {
+    const customerRepo = this.manager_.getCustomRepository(
+      this.customerGroupRepository_
+    )
+
+    const validatedId = this.validateId_(id)
+    const query = this.buildQuery_({ id: validatedId }, config)
+
+    const customerGroup = await customerRepo.findOne(query)
+    if (!customerGroup) {
+      throw new MedusaError(
+        MedusaError.Types.NOT_FOUND,
+        `CustomerGroup with ${id} was not found`
+      )
+    }
+
+    return customerGroup
+  }
+
   /**
    * Creates a customer group with the provided data.
    * @param {DeepPartial<CustomerGroup>} group - the customer group to create