Cheat Sheet

Poor me! How the hell do you pronounce?

Anna Sui: anna swee
A Détacher: ah day-tah-shay
Acne: ahk-nay
Alber Elbaz: ahl-bear el-bahz
Alexandre Vauthier: ah-lex-ahn-der voh-tee-ay
Andrew Gn: an-drew jin
Ann Demeulemeester: ann de-mule-eh-meester
Anya Hindmarch: ahn-yuh hind-marsh
Aquilano Rimondi: ah-kwi-lahn-doh rim-ohn-dee

Azzedine Alaia: azz-eh-deen ah-lie-ah 

Badgley Mischka: badge-lee meesh-kah 

Balenciaga: bah-len-see-ah-gah

Balmain: bahl-mahhhhn 
Behnaz Sarafpour: ben-ahz sar-uh-for
Bibhu Mohapatra: bee-booh mo-ahh-pat-rah
Bouchra Jarrar: boo-shra jahr-arr

Bottega Veneta: bow-tay-guh vah-netta 
Burberry Prorsum: burr-behr-ee prohr-sum
Carven: cahr-vehn
Christian Lacroix: christian luh-kwa 

Christian Louboutin: christian loo-boo-tan 

Comme des Garçons: comb dey gah-sown
Costella Tagliapietra: coh-stell-oh tag-lee-ah-pee-ay-troh 
Cushnie et Ochs: cuh-sh-nee eht ocks

Dolce & Gabbana: dol-chey and gab-ana 

Dries Van Noten: drees van know-ten 
Elie Saab: ee-lee sahb 
Emanuel Ungaro: ee-man-you-el uhn-gar-oh
Erdem Moragliou: air-dem more-ah-glee-uh
Ermenegildo Zegna: ehr-men-e-jil-doh zayn-yah
Etro: eht-ro

Gareth Pugh: gareth pew
Guillame Henry: gee-ohm ahn-ree 

Giambattista Valli: gee-am-bah-tease-ta vah-lee 

Gianfranco Ferre: gee-ahn-franco feh-ray
Givenchy: zjee-von-shee 
Hedi Slimane: ed-ee slim-ahn

Hermès: er-mez 

Hervé Léger: air-vay lay-jah 

Hussein Chalayan: hoo-sane sha-lion 
Issa: ee-sah

Issey Miakye: iss-ee mee-yah-key 

Jean Paul Gaultier: zhon paul go-tee-ay 

Junya Watanabe: jun-yah wat-an-ah-bey 

Kinder Aggugini: kinder ag-ooh-gee-nee 
Kirna Zabête: keer-nah zah-bet

Lanvin: lahn-vahn 

Loewe: loh-wev-eh 

Louis Vuitton: loo-wee vwee-tahn 

L'Wren Scott: la-ren scott 

Maison Martin Margiela: may-sohn martin mar-jhell-ah 

Marchesa: mar-kay-sah 

Mary Katrantzou: mary cat-trant-zoo 
Maiyet: may-et
Maje: mahj

Miu Miu: mew-mew 

Monique Lhuillier: monique le-hu-lee-ay 

Moschino: mos-key-no 
Nicholas Ghesquière: nee-coh-la guess-k-yair
Olivier Theyskens: oh-liv-ee-ay tay-skins 

Proenza Schouler: pro-en-zuh skool-er 
Ralph Lauren: ralf lor-en
Rei Kawakubo: ray cow-uh-kooh-bow

Rochas: row-shahs 

Rodarte: row-dar-tay 

Roksanda Ilincic: roksanda ill-in-chik 
Sacai: suh-kai

Salvatore Ferragamo: sal-vah-tor-re fer-ra-gah-moh 
Schiaparelli: skyap-uh-rell-ee

Sonia Rykiel: sewn-yah ree-key-el 

Thakoon: tah-koon 
TSE: say
Ulyana Sergeenko: uhl-yahn-uh s-air-jane-koh
Ungaro: oon-gahr-oh

Versace: vur-sah-chee 
Vika Gazinskaya: vee-kah gahv-in-skee-yah
Vionnet: vee-oh-nay
Yigal Azrouël: yig-ahl ahz-roo-el

Yves Saint Laurent: eve san lau-ron 

Yohji Yamamoto: yoh-jee yam-ah-mo-to

source: Harper's Bazaar; more fashion lesson in designer name pronunciation: here and here