UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2019

Commission File Number: 000-30910

O2Micro International Limited
(Translation of registrant's name into English)

Grand Pavilion Commercial Centre, West Bay Road
P.O. Box 32331 SMB, George Town
Grand Cayman

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ X ]      Form 40-F [   ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant's "home country"), or under the rules of the home country exchange on which the registrant's securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant's security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR. 


On April 18, 2019, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

(c) Exhibit 99.1. Press release dated April 18, 2019


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

      O2Micro International Limited    
  (Registrant)
   
  
Date: April 18, 2019     /s/ Sterling Du    
  Sterling Du
  Chief Executive Officer
  
EdgarFiling

EXHIBIT 99.1

O2Micro to Announce First Quarter 2019 Results

GEORGE TOWN, Grand Cayman, April 18, 2019 (GLOBE NEWSWIRE) -- O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the First quarter ending March 31st, 2019, on Wednesday, May 1st, 2019.

The press release will be followed by a conference call at 6:00 a.m. (Pacific), 9:00 a.m. (Eastern). You may participate using the following dial-in information.

Conference Code: 2520056
Participants, Int'l Toll:  +1 334-323-0522
Participants, US/CAN:  800-667-5617

The Call-in Audio Replay will be available from May 1, 2019 12:00 Eastern Time (US & Canada) (UTC-05:00) through May 8, 2019 12:00 Eastern Time (US & Canada) (UTC 5:00)
https://event.mymeetingroom.com/Public/ReplayNumberViewPage/2520056?instance=1&language=english&webreg=True 

A live webcast will also be available on the Company's website at http://ir.o2micro.com, and an online replay will be available on the website for one week.

About O2Micro
Founded in April 1995, O2Micro develops and markets innovative power management components for the Computer, Consumer, Industrial, Automotive and Communications markets. Products include Backlighting, Battery Management, Power Management and LED General Lighting.
The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2Micro.com.

O2Micro, the O2Micro logo, and combinations thereof are registered trademarks of O2Micro. All other trademarks or registered trademarks are the property of their respective owners.

Contact Information:
Investor Relations, O2Micro
Phone: 408.987.5920, x8888
Email:    ir@o2micro.com