SC 13G

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

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No Ten)
CELESTICA INC.
...........................................................
(Name of Issuer)
SUBORDINATE VOTING SHARES
...........................................................
(Title of Class of Securities)
15101Q108
............................................................
(CUSIP Number)
December 31, 2016
............................................................
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which 
this Schedule is filed:

[x] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting 
person's initial filing on this form with respect to the subject class 
of securities, and for any subsequent amendment containing information 
which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not 
be deemed to be "filed" for the purpose of Section 18 of the Securities 
Exchange Act of 1934 ("Act") or otherwise subject to the liabilities 
of that section of the Act but shall be subject to all other provisions 
of the Act (however, see the Notes).

CUSIP No. 15101Q108
(1)Names of reporting persons. I.R.S. Identification Nos. 
of above persons (entities only)

LETKO, BROSSEAU & ASS. INC.

(2) Check the appropriate box if a member of a group (see instructions)
(a)
(b)
(3) SEC use only
(4) Citizenship or place of organization     CANADA

Number of shares beneficially owned by each reporting person with:
(5)Sole voting power    20,910,848

(6)Shared voting power

(7)Sole dispositive power               20,910,848

(8)Shared dispositive power
(9)Aggregate amount beneficially owned by each reporting person

20,910,848
(10)Check if the aggregate amount in Row (9) excludes 
certain shares (see instructions)
(11)Percent of class represented by amount in Row 9

17.1%
(12)Type of reporting person (see instructions)

FI

Item 1.
Item 1(a) Name of issuer: CELESTICA INC.

Item 1(b) Address of issuer's principal executive offices:
844 Don Mills Road
Toronto, Ontario, Canada
M3C 1V7
Item 2.
2(a) Name of person filing:
Letko, Brosseau & Ass. Inc.
2(b) Address or principal business office or, if none, residence:
1800 Mc Gill College Av.
Suite 2510
Montreal, QC  
H3A 3J6
Canada

2(c) Citizenship:

Canada

2(d) Title of class of securities:

SUBORDINATE VOTING SHARES

2(e) CUSIP No.: 
15101Q108       

Item 3.

If this statement is filed pursuant to Rules 13d-1(b), 
or 13d-2(b) or (c), check whether the person filing is a: 
a. [ ] Broker or dealer registered under Section 15 of the Act.
b. [ ] Bank as defined in Section 3(a)(6) of the Act.
c. [ ] Insurance company as defined in Section 3(a)(19) of the Act.
d. [ ] Investment company registered under Section 8 
of the Investment Company Act of 1940.
e. [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
f. [ ] An employee benefit plan or endowment fund in accordance 
with Rule 13d-1(b)(1)(ii)(F); 
g. [ ] A parent holding company or control person in accordance 
with Rule 13d-1(b)(1)(ii)(G);
h. [ ] A savings associations as defined in Section 3(b) of 
the Federal Deposit Insurance Act (12 U.S.C. 1813);
i. [ ] A church plan that is excluded from the definition 
of an investment company under section 3(c)(14) 
of the Investment Company Act of 1940;
j. [x] A non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J);
k. [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(K).

Item 4. Ownership

Provide the following information regarding the aggregate number 
and percentage of the class of securities of the issuer identified in Item 1. 
a. Amount beneficially owned: 20,910,848
b. Percent of class: 17.1%
c. Number of shares as to which such person has:
i. Sole power to vote or to direct the vote:  20,910,848
ii. Shared power to vote or to direct the vote
iii. Sole power to dispose or to direct the disposition of:  20,910,848
iv. Shared power to dispose or to direct the disposition of

Item 5.

Ownership of 5 Percent or Less of a Class. If this statement is being filed to 
report the fact that as of the date hereof the reporting person 
has ceased to be the beneficial owner of more than 5 percent of the 
class of securities, check the following [ ].

Item 6. Ownership of More than 5 Percent on Behalf of Another Person

Clients of Letko, Brosseau & Ass. Inc. have the right to receive or the power 
to direct the receipt of dividends from, or the proceeds from sale of, the 
subordinate voting shares reported as beneficially owned by 
Letko, Brosseau & Ass. Inc.  No clients of Letko, Brosseau & Ass. Inc. 
beneficially owns more than five percent of Issuer's subordinate voting shares. 

Item 7. Identification and Classification of the Subsidiary Which Acquired 
the Security Being Reported on by the Parent Holding Company or 
Control Person.

Not Applicable 

Item 8. Identification and Classification of Members of the Group

Not Applicable 

Item 9. Notice of Dissolution of Group

Not Applicable 

Item 10. Certification
By signing below I certify that, to the best of my knowledge and belief, 
the securities referred to above were acquired and are held in the ordinary 
course of business, were not acquired and are not held for the purpose of 
or with the effect of changing or influencing the control of the issuer 
of the securities and were not acquired and are not held in connection 
with or as a participant in any transaction having that purpose or effect.

Signature

After reasonable inquiry and to the best of my knowledge and belief, 
I certify that the information set forth in this statement is true, 
complete and correct.

Dated : January 18, 2017

Signature :       Daniel Brosseau

Name/Title: Daniel Brosseau/President