Cipher System / By Night

{{Unreferenced|date=November 2009}}

{{Infobox album

| name = Cipher System / By Night

| type = ep

| artist = Cipher System and By Night

| cover = Cipher_system_and_by_night_split.jpg

| alt =

| released = June 18, 2004

| recorded =

| venue =

| studio =

| genre = Death metal, extreme metal

| length = 21:35

| label = Lifeforce

| producer =

| chronology = By Night

| prev_title =

| prev_year =

| next_title = Burn the Flags

| next_year = 2005

| misc = {{Extra chronology

| artist = Cipher System

| type = EP

| prev_title =

| prev_year =

| title = Cipher System / By Night

| year = 2004

| next_title = Central Tunnel Eight

| next_year = 2004

}}

}}

Cipher System / By Night is an EP by the Swedish metal bands Cipher System and By Night. Released in 2004.