FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person *   Lokar Thomas Gerald 2. Date of Event Requiring Statement (Month/Day/Year) 12/20/2016 3. Issuer Name and Ticker or Trading Symbol MITEL NETWORKS CORP [MITL] (Last) (First) (Middle) 350 LEGGET DRIVE 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Human Resources Officer 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) OTTAWA, A6 K2K 2W7 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Shares 87 D Â

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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Options (Common Shares)	  (1)	03/04/2023	Common Shares	74,250	$ 7.17	D	Â
Options (Common Shares)	  (2)	03/05/2022	Common Shares	41,900	$ 9.7	D	Â
Options (Common Shares)	  (3)	02/05/2021	Common Shares	85,000	$ 8.79	D	Â
Restricted Stock Units	  (4)	  (4)	Common Shares	60,750	$ (4)	D	Â
Restricted Stock Units	  (5)	  (5)	Common Shares	29,625	$ (5)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Lokar Thomas Gerald 350 LEGGET DRIVE OTTAWA, A6 K2K 2W7	Â	Â	  Chief Human Resources Officer	Â

Signatures

/s/ Thomas Gerald Lokar		12/20/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	74,250 stock options to purchase common shares ("Common Shares") of Mitel Networks Corporation (the "Company") were granted to Mr. Lokar on March 4, 2016. 4,640 options vested on June 4, 2016 and are scheduled to vest in approximately equal installments every three months thereafter until March 4, 2020.
(2)	41,900 stock options to purchase Common Shares of the Company were granted to Mr. Lokar on March 5, 2015. 2,618 options vested on June 5, 2016 and are scheduled to vest in approximately equal installments every three months thereafter until March 5, 2019.
(3)	85,000 stock options to purchase Common Shares of the Company were granted to Mr. Lokar on February 5, 2014. 5,312 options vested on May 5, 2014 and are scheduled to vest in approximately equal installments every three months thereafter until February 5, 2018.
(4)	Represents 60,750 Common Shares underlying 60,750 Restricted Stock Units ("RSUs") granted to Mr. Lokar on March 4, 2016. These RSUs will vest as follows: (i) 15,187 of the RSUs will vest on March 4, 2017; (ii) 15,188 of the RSUs will vest on March 4, 2018; (iii) 15,187 of the RSUs will vest on March 4, 2019; and (iv) 15,188 of the RSUs will vest on March 4, 2020.
(5)	Represents 29,625 Common Shares underlying 29,625 RSUs granted to Mr. Lokar on March 5, 2015. These RSUs will vest as follows: (i) 9,875 of the RSUs will vest on March 5, 2017; (ii) 9,875 of the RSUs will vest on March 5, 2018; and (iii) 9,875 of the RSUs will vest on March 5, 2019.

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