FORM 6-K

                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                            Report of Foreign Issuer


                       Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                           For the month of April 2005


                             COLT TELECOM GROUP plc
                 (Translation of Registrant's Name into English)


                                 Beaufort House
                              15 St. Botolph Street
                                     London
                                    EC3A 7QN
                                     England

                       _________________________________
                    (Address of Principal Executive Offices)



(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 whether the Registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934)


                              Yes .....    No ..X...


(If "Yes" is marked, indicate below the file number assigned to the Registrant
in connection with Rule 12g3-2(b): 82- ________)



This Form 6-K shall be deemed to be incorporated by reference in the
Registrant's Registration Statement on Form F-3 (Reg. No.333-05972), in the
Registrant's Registration Statement on Form S-8 (Reg. No.333-8362)





22 April 2005
                        COLT APPOINTS COMPANY SECRETARY


COLT Telecom Group plc today announced that it has appointed Caroline Griffin
Pain as Company Secretary. Caroline joins COLT from Radianz where she was
Company Secretary having previously held senior management positions at
Antfactory and Rea Brothers Group plc.


About COLT

COLT is one of the leading European providers of business communications. COLT
specialises in providing data, voice and managed services to midsize and major
businesses and wholesale customers. It has more than 50,000 customers across all
industry sectors. COLT owns and operates a 13-country, 20,000km network that
includes metropolitan area networks in 32 major European cities with direct
fibre connections into 10,000 buildings and 12 COLT data centres.

COLT Telecom Group plc is listed on the London Stock Exchange (CTM.L) and NASDAQ
(COLT). Information about COLT and its services can be found at www.colt.net


For further information contact:

COLT Telecom Group plc

Luke Glass
Director Corporate Communications
Email: luke.glass@colt.net
Tel: +44 (0) 20 7390 3681

Gill Maclean
Head of Corporate Communications
Email: gill.maclean@colt.net
Tel: +44 (0) 20 7863 5314

                                    SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this Current Report on Form-6K to be signed on its
behalf by undersigned, thereunto duly authorized.



Date: 22 April 2005                                COLT Telecom Group plc


                                                     By: ___Jane Forrest___

                                                     Jane Forrest
                                                     Company Secretary