Tsai Duei

{{Infobox officeholder

| name = Tsai Duei

| native_name = {{no bold|{{lang|zh-hans|蔡堆}}}}

| image = 2007TaipeiITF Day1 DueiTsai.jpg

| caption =

| office1 = Minister of Transportation and Communications of the Republic of China

| deputy1 =

| term_start1 = 25 August 2006

| term_end1 = 20 May 2008

| predecessor1 = Kuo Yao-chi

| successor1 = Mao Chi-kuo

| office2 = Political Deputy Minister of Transportation and Communications of the Republic of China

| minister2 = Kuo Yao-chi

| term_start2 = January 2006

| term_end2 = August 2006

| predecessor2 =

| successor2 =

| office3 = Political Deputy Minister of Public Construction Commission of the Executive Yuan

| deputy3 =

| term_start3 = February 2005

| term_end3 = January 2006

| predecessor3 =

| successor3 =

| office4 = Political Deputy Minister of Transportation and Communications of the Republic of China

| minister4 = Lin Ling-san

| term_start4 = February 2002

| term_end4 = February 2005

| predecessor4 =

| successor4 =

| office5 = Administrative Deputy Minister of Transportation and Communications of the Republic of China

| minister5 = Yeh Chu-lan

| term_start5 = August 2000

| term_end5 = February 2002

| predecessor5 =

| successor5 =

| birth_date = {{b-da|1 December 1947}}

| birth_place = Taichung, Taiwan

| party =

| spouse =

| children =

| signature =

| education = National Taipei University of Technology (BS)
National Taiwan University (MS, PhD)

}}

Tsai Duei ({{zh|t=蔡堆|p=Cài Duī}}; born 1 December 1947) is a Taiwanese electrical engineer who served as the Minister of Transportation and Communications.Oung, Angelica, Shelley Han, and Shih Hsiu-chuan. "[http://www.taipeitimes.com/News/taiwan/archives/2006/12/05/2003339159/print Investigation into cause of fatal bus crash near Tainan continues]." Taipei Times. Tuesday December 5, 2006. {{webarchive |url=https://www.webcitation.org/5vBLgDiMf?url=http://www.taipeitimes.com/News/taiwan/archives/2006/12/05/2003339159/print |date=December 23, 2010 }}{{cite web |url=http://210.69.99.7/motchypage/en/hypage.cgi?HYPAGE=Eng_AboutMOTC_1.asp |title=Ministry of Transportation and Communications |accessdate=2013-05-02 |url-status=dead |archiveurl=https://archive.today/20130627105418/http://210.69.99.7/motchypage/en/hypage.cgi?HYPAGE=Eng_AboutMOTC_1.asp |archivedate=2013-06-27 }}