Maurycy Stefanowicz

{{Short description|Polish guitarist (born 1976)}}

{{Use dmy dates|date=October 2014}}

{{Infobox person

| image = 2023-09-22 Vader at 40 Years of the Apocalypse (Martin Rulsch) 113.jpg

| caption = Stefanowicz in 2023

| occupation = Musician, songwriter, producer

| birth_name =

| birth_date = {{birth year and age|1976}}

| birth_place = Szczytno, Poland

| years_active =

| alma_mater =

| children = 2

| spouse = Anna Stefanowicz

| module = {{Infobox musical artist| embed = yes

| alias = Mauser

| instrument = Guitar, bass, keyboard, vocals

| genre = Death metal, black metal, Gothic metal

| label = Metal Blade, Regain Records, Mystic Production, Century Media

| years_active = 1992–present

| website =

}}

}}

Maurycy "Mauser" Stefanowicz (born 1976) is a Polish guitarist. Stefanowicz has played with such bands as Vader, Dies Irae, Christ Agony, UnSun.{{Cite web|url=https://www.allmusic.com/artist/unsun-mn0001013615|title=UnSun Songs, Albums, Reviews, Bio & More|website=AllMusic}}{{Cite web|url=https://www.allmusic.com/artist/dies-irae-mn0000270520|title=Dies Irae Songs, Albums, Reviews, Bio & More|website=AllMusic}}{{Cite web|url=https://www.allmusic.com/artist/christ-agony-mn0000302970|title=Christ Agony Songs, Albums, Reviews, Bio & More|website=AllMusic}}{{Cite web|url=https://www.allmusic.com/artist/vader-mn0000835952|title=Vader Songs, Albums, Reviews, Bio & More|website=AllMusic}} He is sponsored by Washburn Guitars.