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Robert William Tiangco

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About Me

Robert W. Tiangco is an aggressive attorney with over 15 years experience specializing in criminal defense. Mr. Tiangco has a high level of proficiency in criminal defense, extensive litigation of complex cases with notable esteemed character and background amongst his peers, prosecutors and judges. As a local attorney he has the ability to get the best possible outcome on nearly all cases.

Mr. Tiangco has litigated hundreds of felony and misdemeanor criminal cases including felony DUI cases, drug, sex crimes, narcotic crimes, three strikes cases, white collar crimes, and theft crimes.

Mr. Tiangco has represented successfully hundreds of clients at trial and all other stages of courtroom proceedings, including arraignment, bail hearings, preliminary hearings, probation violations and sentencing hearings. He is extremely well versed in DUI case law and defenses. He has had hundreds of DUI dismissed through court negotiations. He has many DUIs dismissed through court litigation.

Mr. Tiangco is able to negotiate, persuade, litigate and take the case to trial. His proven track record and strong academic background makes him uniquely qualified to represent those people who are accused of crimes. He is highly experienced in all felony matters. He has successfully handled hundreds of drug, theft and assault cases.

Mr. Tiangco was a previous legal research clerk for the San Diego Superior Court assisting superior court judges with trial and law and motion decisions. He worked at the Office of the Public Defender assisting indigent defendants through the legal process.

Mr. Tiangco was also a speaker on with the local media addressing current legal topics and news, and a volunteer with the San Diego Bar Association speaking at various elementary and secondary schools addressing various areas of the law.


Practice Areas


  1. DUI & DWI: 100%

Attorney Endorsements

1 total 

  • Courtney Brooke Lockhart

    Robert Tiangco is one of the most talented and committed lawyers and people I know. His commitment to his work and his clients is unparalleled. I endorse this lawyer.


    Courtney Lockhart Litigation Attorney
    Relationship: Worked together on matter

Contact Info

Law Office of Robert W. Tiangco

Centerside Tower I
3111 Camino Del Rio N Ste 400
San Diego, CA, 92108



Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Speaker/LecturerSan Diego Bar Association2011
Work Experience
TitleCompany NameDuration
PartnerLaw Office of Robert Tiangco2012 - Present
Association NamePosition NameDuration
American Trial Lawyers AssociationMember1996 - Present
Legal Cases
Case NameOutcome
See website: attorneyRobertTiangco.comN/A
See all Legal Cases 
Publication NameTitleDate
Case N196502Discrediting Expert Witness2000
School NameMajorDegreeGraduated
San Diego State UnivN/AundergraduateN/A
Speaking Engagements
Conference NameTitleDate
San Diego County Bar Association, Children at Risk CommitteeSan Diego Bar Association2011