diff --git a/api/queries_issue.go b/api/queries_issue.go
index 17f32eabd..e561bf19c 100644
--- a/api/queries_issue.go
+++ b/api/queries_issue.go
@@ -123,6 +123,25 @@ func IssueCreate(client *Client, repo *Repository, params map[string]interface{}
 	return &result.CreateIssue.Issue, nil
 }
 
+func CommentCreate(client *Client, repoHost string, params map[string]interface{}) error {
+	query := `
+	mutation CommentCreate($input: AddCommentInput!) {
+		addComment(input: $input) { clientMutationId }
+	}`
+
+	variables := map[string]interface{}{
+		"input": params,
+	}
+
+	err := client.GraphQL(repoHost, query, variables, nil)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func IssueStatus(client *Client, repo ghrepo.Interface, currentUsername string) (*IssuesPayload, error) {
 	type response struct {
 		Repository struct {
diff --git a/pkg/cmd/issue/comment/comment.go b/pkg/cmd/issue/comment/comment.go
new file mode 100644
index 000000000..9857802b8
--- /dev/null
+++ b/pkg/cmd/issue/comment/comment.go
@@ -0,0 +1,202 @@
+package comment
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/AlecAivazis/survey/v2"
+	"github.com/MakeNowJust/heredoc"
+	"github.com/cli/cli/api"
+	"github.com/cli/cli/internal/config"
+	"github.com/cli/cli/internal/ghrepo"
+	"github.com/cli/cli/pkg/cmd/issue/shared"
+	"github.com/cli/cli/pkg/cmdutil"
+	"github.com/cli/cli/pkg/iostreams"
+	"github.com/cli/cli/pkg/prompt"
+	"github.com/cli/cli/pkg/surveyext"
+	"github.com/spf13/cobra"
+)
+
+type CommentOptions struct {
+	HttpClient  func() (*http.Client, error)
+	Config      func() (config.Config, error)
+	IO          *iostreams.IOStreams
+	BaseRepo    func() (ghrepo.Interface, error)
+	Body        string
+	SelectorArg string
+	Interactive bool
+	Action      Action
+}
+
+func NewCmdComment(f *cmdutil.Factory, runF func(*CommentOptions) error) *cobra.Command {
+	opts := &CommentOptions{
+		IO:         f.IOStreams,
+		HttpClient: f.HttpClient,
+		Config:     f.Config,
+	}
+
+	cmd := &cobra.Command{
+		Use:   "comment {<number> | <url>}",
+		Short: "Create comments for the issue",
+		Example: heredoc.Doc(`
+			$ gh issue comment --body "I found a bug. Nothing works"
+		`),
+		Args: cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// support `-R, --repo` override
+			opts.BaseRepo = f.BaseRepo
+
+			bodyProvided := cmd.Flags().Changed("body")
+
+			opts.Interactive = !(bodyProvided)
+
+			if len(args) > 0 {
+				opts.SelectorArg = args[0]
+			}
+
+			if runF != nil {
+				return runF(opts)
+			}
+			return commentRun(opts)
+		},
+	}
+
+	cmd.Flags().StringVarP(&opts.Body, "body", "b", "", "Supply a body.")
+
+	return cmd
+}
+
+type Action int
+
+const (
+	SubmitAction Action = iota
+	CancelAction
+)
+
+func titleBodySurvey(editorCommand string, issueState *CommentOptions, apiClient *api.Client, repo ghrepo.Interface, providedBody string) error {
+	bodyQuestion := &survey.Question{
+		Name: "body",
+		Prompt: &surveyext.GhEditor{
+			BlankAllowed:  false,
+			EditorCommand: editorCommand,
+			Editor: &survey.Editor{
+				Message:  "Body",
+				FileName: "*.md",
+				Default:  issueState.Body,
+			},
+		},
+	}
+
+	var qs []*survey.Question
+
+	if providedBody == "" {
+		qs = append(qs, bodyQuestion)
+	}
+
+	err := prompt.SurveyAsk(qs, issueState)
+	if err != nil {
+		panic(fmt.Sprintf("could not prompt: %w", err))
+	}
+
+	confirmA, err := confirmSubmission()
+
+	if err != nil {
+		panic(fmt.Sprintf("unable to confirm: %w", err))
+	}
+
+	issueState.Action = confirmA
+	return nil
+}
+
+func confirmSubmission() (Action, error) {
+	const (
+		submitLabel = "Submit"
+		cancelLabel = "Cancel"
+	)
+
+	options := []string{submitLabel, cancelLabel}
+
+	confirmAnswers := struct {
+		Confirmation int
+	}{}
+	confirmQs := []*survey.Question{
+		{
+			Name: "confirmation",
+			Prompt: &survey.Select{
+				Message: "What's next?",
+				Options: options,
+			},
+		},
+	}
+
+	err := prompt.SurveyAsk(confirmQs, &confirmAnswers)
+	if err != nil {
+		return -1, fmt.Errorf("could not prompt: %w", err)
+	}
+
+	switch options[confirmAnswers.Confirmation] {
+	case submitLabel:
+		return SubmitAction, nil
+	case cancelLabel:
+		return CancelAction, nil
+	default:
+		return -1, fmt.Errorf("invalid index: %d", confirmAnswers.Confirmation)
+	}
+}
+
+func commentRun(opts *CommentOptions) error {
+	httpClient, err := opts.HttpClient()
+	if err != nil {
+		return err
+	}
+	apiClient := api.NewClientFromHTTP(httpClient)
+
+	issue, baseRepo, err := shared.IssueFromArg(apiClient, opts.BaseRepo, opts.SelectorArg)
+
+	if err != nil {
+		return err
+	}
+
+	isTerminal := opts.IO.IsStdoutTTY()
+
+	if isTerminal {
+		fmt.Fprintf(opts.IO.ErrOut, "\nMake a comment for %s in %s\n\n", issue.Title, ghrepo.FullName(baseRepo))
+	}
+
+	action := SubmitAction
+	body := opts.Body
+
+	if opts.Interactive {
+		editorCommand, err := cmdutil.DetermineEditor(opts.Config)
+		if err != nil {
+			return err
+		}
+
+		err = titleBodySurvey(editorCommand, opts, apiClient, baseRepo, body)
+
+		if err != nil {
+			return err
+		}
+
+		action = opts.Action
+	}
+
+	if action == CancelAction {
+		return nil
+	} else if action == SubmitAction {
+		params := map[string]interface{}{
+			"subjectId": issue.ID,
+			"body":      opts.Body,
+		}
+
+		err = api.CommentCreate(apiClient, baseRepo.RepoHost(), params)
+		if err != nil {
+			return err
+		}
+
+		fmt.Fprintln(opts.IO.Out, issue.URL)
+
+		return nil
+	}
+	return fmt.Errorf("unexpected action state: %v", action)
+}
diff --git a/pkg/cmd/issue/comment/comment_test.go b/pkg/cmd/issue/comment/comment_test.go
new file mode 100644
index 000000000..fe101a797
--- /dev/null
+++ b/pkg/cmd/issue/comment/comment_test.go
@@ -0,0 +1,117 @@
+package comment
+
+import (
+	"bytes"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"reflect"
+	"regexp"
+	"testing"
+
+	"github.com/cli/cli/internal/config"
+	"github.com/cli/cli/internal/ghrepo"
+	"github.com/cli/cli/pkg/cmdutil"
+	"github.com/cli/cli/pkg/httpmock"
+	"github.com/cli/cli/pkg/iostreams"
+	"github.com/cli/cli/test"
+	"github.com/google/shlex"
+)
+
+func eq(t *testing.T, got interface{}, expected interface{}) {
+	t.Helper()
+	if !reflect.DeepEqual(got, expected) {
+		t.Errorf("expected: %v, got: %v", expected, got)
+	}
+}
+func runCommand(rt http.RoundTripper, isTTY bool, cli string) (*test.CmdOut, error) {
+	io, _, stdout, stderr := iostreams.Test()
+	io.SetStdoutTTY(isTTY)
+	io.SetStdinTTY(isTTY)
+	io.SetStderrTTY(isTTY)
+
+	factory := &cmdutil.Factory{
+		IOStreams: io,
+		HttpClient: func() (*http.Client, error) {
+			return &http.Client{Transport: rt}, nil
+		},
+		Config: func() (config.Config, error) {
+			return config.NewBlankConfig(), nil
+		},
+		BaseRepo: func() (ghrepo.Interface, error) {
+			return ghrepo.New("OWNER", "REPO"), nil
+		},
+	}
+
+	cmd := NewCmdComment(factory, func(opts *CommentOptions) error {
+		return commentRun(opts)
+	})
+	argv, err := shlex.Split(cli)
+	if err != nil {
+		return nil, err
+	}
+	cmd.SetArgs(argv)
+
+	cmd.SetIn(&bytes.Buffer{})
+	cmd.SetOut(ioutil.Discard)
+	cmd.SetErr(ioutil.Discard)
+
+	_, err = cmd.ExecuteC()
+	return &test.CmdOut{
+		OutBuf: stdout,
+		ErrBuf: stderr,
+	}, err
+}
+
+func TestCommentCreate(t *testing.T) {
+	http := &httpmock.Registry{}
+	defer http.Verify(t)
+
+	http.StubResponse(200, bytes.NewBufferString(`
+	{ "data": { "repository": {
+		"hasIssuesEnabled": true,
+		"issue": { "number": 96, "title": "The title of the issue"}
+	} } }
+	`))
+
+	http.StubResponse(200, bytes.NewBufferString(`{"mutationId": "THE-ID"}`))
+
+	output, err := runCommand(http, true, `13 -b "cash rules everything around me"`)
+	if err != nil {
+		t.Errorf("error running command `issue comment`: %v", err)
+	}
+
+	bodyBytes, _ := ioutil.ReadAll(http.Requests[1].Body)
+	reqBody := struct {
+		Variables struct {
+			Input struct {
+				Body string
+			}
+		}
+	}{}
+	_ = json.Unmarshal(bodyBytes, &reqBody)
+
+	eq(t, reqBody.Variables.Input.Body, "cash rules everything around me")
+
+	r := regexp.MustCompile(`Make a comment for The title of the issue`)
+
+	if !r.MatchString(output.Stderr()) {
+		t.Fatalf("output did not match regexp /%s/\n> output\n%q\n", r, output.Stderr())
+	}
+}
+
+func TestIssue_Disabled(t *testing.T) {
+	http := &httpmock.Registry{}
+	defer http.Verify(t)
+
+	http.StubResponse(200, bytes.NewBufferString(`
+	{ "data": { "repository": {
+		"hasIssuesEnabled": false
+	} } }
+	`))
+
+	_, err := runCommand(http, true, "13")
+	if err == nil || err.Error() != "the 'OWNER/REPO' repository has disabled issues" {
+		t.Fatalf("got error: %v", err)
+	}
+}
diff --git a/pkg/cmd/issue/issue.go b/pkg/cmd/issue/issue.go
index 6f2cea6d9..12463b480 100644
--- a/pkg/cmd/issue/issue.go
+++ b/pkg/cmd/issue/issue.go
@@ -3,6 +3,7 @@ package issue
 import (
 	"github.com/MakeNowJust/heredoc"
 	cmdClose "github.com/cli/cli/pkg/cmd/issue/close"
+	cmdComment "github.com/cli/cli/pkg/cmd/issue/comment"
 	cmdCreate "github.com/cli/cli/pkg/cmd/issue/create"
 	cmdList "github.com/cli/cli/pkg/cmd/issue/list"
 	cmdReopen "github.com/cli/cli/pkg/cmd/issue/reopen"
@@ -40,6 +41,7 @@ func NewCmdIssue(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(cmdReopen.NewCmdReopen(f, nil))
 	cmd.AddCommand(cmdStatus.NewCmdStatus(f, nil))
 	cmd.AddCommand(cmdView.NewCmdView(f, nil))
+	cmd.AddCommand(cmdComment.NewCmdComment(f, nil))
 
 	return cmd
 }