Darkest Mercy

{{Short description|2011 novel by Melissa Marr}}

{{Notability|Book|date=September 2022}}

{{Use mdy dates|date=March 2025}}

{{Infobox book |

| name = Darkest Mercy

| image = Darkest_Mercy_Cover.jpg

| caption =

| author = Melissa Marr

| cover_artist = Mark Tucker (photography)

| country = United States

| language = English

| series = Wicked Lovely

| genre = Young adult
Urban fantasy

| publisher = HarperTeen, an imprint of HarperCollins

| release_date = February 22, 2011

| pages = 352

| media_type = Print (Hardcover)

| isbn = 978-0-0616-5925-6

| oclc = 666573450

| preceded_by = Radiant Shadows

}}

Darkest Mercy is an Urban fantasy novel by Melissa Marr. It is set in the same universe as Marr's previous YA novels, but is not a sequel to Radiant Shadows; rather, it is a follow-up to Wicked Lovely and Fragile Eternity.