PAGE  1
000 B000000 01/31/2015
000 C000000 0000916183
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 PIMCO STRATEGIC INCOME FUND, INC.
001 B000000 811-08216
001 C000000 8443374626
002 A000000 1633 BROADWAY
002 B000000 New York
002 C000000 NY
002 D010000 10019
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
007 B000000  0
007 C010100  1
008 A000001 PACIFIC INVESTMENT MANAGEMENT COMPANY LLC
008 B000001 A
008 C000001 801-48187
008 D010001 NEWPORT BEACH
008 D020001 CA
008 D030001 92660
010 A000001 PACIFIC INVESTMENT MANAGEMENT COMPANY LLC
010 B000001 801-48187
010 C010001 NEWPORT BEACH
010 C020001 CA
010 C030001 92660
012 A000001 AMERICAN STOCK TRANSFER & TRUST COMPANY LLC
012 B000001 84-00416
012 C010001 BROOKLYN
012 C020001 NY
012 C030001 11219
013 A000001 PRICEWATERHOUSECOOPERS, LLP
013 B010001 KANSAS CITY
013 B020001 MO
013 B030001 64106
014 A000001 PIMCO INVESTMENTS LLC
014 B000001 8-68686
015 A000001 STATE STREET BANK & TRUST COMPANY
015 B000001 C
015 C010001 KANSAS CITY
015 C020001 MO
015 C030001 64105
015 E010001 X
      PAGE  2
015 A000002 CITIBANK N.A.
015 B000002 S
015 C010002 BUENOS AIRES
015 D010002 ARGENTINA
015 E040002 X
015 A000003 DEUTSCHE BANK AG
015 B000003 S
015 C010003 VIENNA
015 D010003 AUSTRIA
015 E040003 X
015 A000004 THE HONGKONG & SHANGHAI BANKING CORP., LTD.
015 B000004 S
015 C010004 SYDNEY
015 D010004 AUSTRALIA
015 E040004 X
015 A000005 DEUTSCHE BANK AG
015 B000005 S
015 C010005 BRUSSELS
015 D010005 BELGIUM
015 E040005 X
015 A000006 CITIBANK N.A.
015 B000006 S
015 C010006 SAO PAULO
015 D010006 BRAZIL
015 E040006 X
015 A000007 ROYAL BANK OF CANADA
015 B000007 S
015 C010007 TORONTO
015 D010007 CANADA
015 E040007 X
015 A000008 CREDIT SUISSE AG
015 B000008 S
015 C010008 ZURICH
015 D010008 SWITZERLAND
015 E040008 X
015 A000009 HSBC BANK (CHINA) COMPANY LIMITED
015 B000009 S
015 C010009 SHANGHAI/SHENZHEN
015 D010009 P.R. CHINA
015 E040009 X
015 A000010 CITITRUST COLOMBIA S.A. SOCIEDAD FIDUCIARIA
015 B000010 S
015 C010010 BOGOTA
015 D010010 COLOMBIA
015 E040010 X
015 A000011 CESKOLOVENSKA OBCHODNI BANKA, A.S.
015 B000011 S
015 C010011 PRAGUE
015 D010011 CZECH REPUBLIC
015 E040011 X
015 A000012 DEUTSCHE BANK AG
      PAGE  3
015 B000012 S
015 C010012 FRANKFURT
015 D010012 GERMANY
015 E040012 X
015 A000013 DEUTCHE BANK S.A.E.
015 B000013 S
015 C010013 BARCELONA
015 D010013 SPAIN
015 E040013 X
015 A000014 NORDEA BANK AB (publ)
015 B000014 S
015 C010014 HELSINKI
015 D010014 FINLAND
015 E040014 X
015 A000015 DEUTSCHE BANK AG
015 B000015 S
015 C010015 PARIS
015 D010015 FRANCE
015 E040015 X
015 A000016 STATE STREEET BANK & TRUST COMPANY
015 B000016 S
015 C010016 LONDON
015 D010016 UNITED KINGDOM
015 E040016 X
015 A000017 BNP PARIBAS SECURITIES SERVICES, S.C.A.
015 B000017 S
015 C010017 ATHENS
015 D010017 GREECE
015 E040017 X
015 A000018 STANDARD CHARTERED BANK (HONG KONG) LTD.
015 B000018 S
015 C010018 HONG KONG
015 D010018 HONG KONG
015 E040018 X
015 A000019 CITIBANK EUROPE PLC
015 B000019 S
015 C010019 BUDAPEST
015 D010019 HUNGARY
015 E040019 X
015 A000020 DEUTSCHE BANK AG
015 B000020 S
015 C010020 JAKARTA
015 D010020 INDONESIA
015 E040020 X
015 A000021 BANK HAPOALIM B.M.
015 B000021 S
015 C010021 TEL AVIV
015 D010021 ISRAEL
015 E040021 X
015 A000022 DEUTSCHE BANK  S.p.A.
015 B000022 S
      PAGE  4
015 C010022 MILAN
015 D010022 ITALY
015 E040022 X
015 A000023 THE HONGKONG & SHANGHAI BANKING CORP., LTD.
015 B000023 S
015 C010023 TOKYO
015 D010023 JAPAN
015 E040023 X
015 A000024 BANCO NACIONAL DE MEXICO S.A.
015 B000024 S
015 C010024 MEXICO CITY
015 D010024 MEXICO
015 E040024 X
015 A000025 DEUTSCHE BANK AG
015 B000025 S
015 C010025 AMSTERDAM
015 D010025 NETHERLANDS
015 E040025 X
015 A000026 DEUTSCHE BANK (MALAYSIA) BERHAD
015 B000026 S
015 C010026 KUALA LUMPUR
015 D010026 MALAYSIA
015 E040026 X
015 A000027 STANBIC IBTC BANK PLC
015 B000027 S
015 C010027 LAGOS
015 D010027 NIGERIA
015 E040027 X
015 A000028 NORDEA BANK AB (publ)
015 B000028 S
015 C010028 OSLO
015 D010028 NORWAY
015 E040028 X
015 A000029 THE HONGKONG & SHANGHAI BANKING CORP., LTD.
015 B000029 S
015 C010029 AUCKLAND
015 D010029 NEW ZEALAND
015 E040029 X
015 A000030 CITIBANK DEL PERU S.A.
015 B000030 S
015 C010030 LIMA
015 D010030 PERU
015 E040030 X
015 A000031 DEUTSCHE BANK AG
015 B000031 S
015 C010031 MANILA
015 D010031 PHILIPPINES
015 E040031 X
015 A000032 BANK POLSKA KASA OPIEKI S.A.
015 B000032 S
015 C010032 WARSAW
      PAGE  5
015 D010032 POLAND
015 E040032 X
015 A000033 DEUTSCHE BANK AG
015 B000033 S
015 C010033 LISBON
015 D010033 PORTUGAL
015 E040033 X
015 A000034 LIMITED LIABILITY COMPANY DEUTSCHE BANK
015 B000034 S
015 C010034 MOSCOW
015 D010034 RUSSIA
015 E040034 X
015 A000035 NORDEA BANK AB (publ)
015 B000035 S
015 C010035 STOCKHOLM
015 D010035 SWEDEN
015 E040035 X
015 A000036 CITIBANK N.A.
015 B000036 S
015 C010036 SINGAPORE
015 D010036 SINGAPORE
015 E040036 X
015 A000037 UNICREDIT BANK SLOVAKIA A.S.
015 B000037 S
015 C010037 BRATISLAVA
015 D010037 SLOVAK REPUBLIC
015 E040037 X
015 A000038 STANDARD CHARTERED BANK (THAI) PCL
015 B000038 S
015 C010038 BANGKOK
015 D010038 THAILAND
015 E040038 X
015 A000039 DEUTSCHE BANK A.S.
015 B000039 S
015 C010039 ISTANBUL
015 D010039 TURKEY
015 E040039 X
015 A000040 BANCO ITAU URUGUAY S.A.
015 B000040 S
015 C010040 MONTEVIDEO
015 D010040 URUGUAY
015 E040040 X
015 A000041 FIRSTRAND BANK LIMITED
015 B000041 S
015 C010041 JOHANNESBURG
015 D010041 SOUTH AFRICA
015 E040041 X
018  000000 Y
019 A000000 Y
019 B000000  186
019 C000000 PIMCOFUNDS
      PAGE  6
020 A000001 DEUTSCHE BANK SECURITIES, INC.
020 B000001 13-2730828
020 C000001      1
021  000000        1
022 A000001 CREDIT SUISSE (USA), INC.
022 B000001 13-1898818
022 C000001   4766448
022 D000001   4780602
022 A000002 BARCLAYS, INC.
022 B000002 06-1031656
022 C000002   2649045
022 D000002   2684005
022 A000003 GOLDMAN SACHS & CO.
022 B000003 13-5108880
022 C000003   1765174
022 D000003   1880266
022 A000004 MORGAN STANLEY & CO., INC.
022 B000004 13-2655998
022 C000004   1078397
022 D000004    909764
022 A000005 DEUTSCHE BANK SECURITIES, INC.
022 B000005 13-2730828
022 C000005    218100
022 D000005   1623825
022 A000006 BNY MELLON CAPITAL MARKETS, LLC
022 B000006 23-2384977
022 C000006    703420
022 D000006    708933
022 A000007 BNP PARIBAS SECURITIES CORP.
022 B000007 13-3235334
022 C000007    644983
022 D000007    729722
022 A000008 BANC OF AMERICA SECURITIES LLC
022 B000008 56-2058405
022 C000008    714480
022 D000008    643166
022 A000009 JPMORGAN CHASE & CO.
022 B000009 13-2624428
022 C000009    199070
022 D000009    200317
022 A000010 UBS SECURITIES LLC
022 B000010 13-3873456
022 C000010    107565
022 D000010    152213
023 C000000   13159005
023 D000000   14519230
024  000000 Y
025 A000001 JPMORGAN CHASE & CO.
025 B000001 13-2624428
025 C000001 D
025 D000001   15564
      PAGE  7
025 A000002 GOLDMAN SACHS & CO.
025 B000002 13-5108880
025 C000002 D
025 D000002   13612
025 A000003 BANC OF AMERICA SECURITIES LLC
025 B000003 56-2058405
025 C000003 D
025 D000003    8410
025 A000004 CREDIT SUISSE (USA), INC.
025 B000004 13-1898818
025 C000004 D
025 D000004    4737
025 A000005 BARCLAYS, INC.
025 B000005 06-1031656
025 C000005 D
025 D000005    2653
025 A000006 MORGAN STANLEY & CO., INC.
025 B000006 13-2655998
025 C000006 D
025 D000006     231
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 N
028 A010000         0
028 A020000         0
028 A030000         0
028 A040000         0
028 B010000         0
028 B020000         0
028 B030000         0
028 B040000         0
028 C010000         0
028 C020000         0
028 C030000         0
028 C040000         0
028 D010000         0
028 D020000         0
028 D030000         0
028 D040000         0
028 E010000         0
028 E020000         0
028 E030000         0
028 E040000         0
028 F010000         0
      PAGE  8
028 F020000         0
028 F030000         0
028 F040000         0
028 G010000         0
028 G020000         0
028 G030000         0
028 G040000         0
028 H000000         0
030 A000000      0
030 B000000  0.00
030 C000000  0.00
031 A000000      0
031 B000000      0
032  000000      0
033  000000      0
035  000000      0
036 B000000      0
038  000000      0
042 A000000   0
042 B000000   0
042 C000000   0
042 D000000   0
042 E000000   0
042 F000000   0
042 G000000   0
042 H000000   0
043  000000      0
044  000000      0
045  000000 Y
046  000000 Y
047  000000 Y
048  000000  0.892
048 A010000        0
048 A020000 0.000
048 B010000        0
048 B020000 0.000
048 C010000        0
048 C020000 0.000
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
      PAGE  9
048 J020000 0.000
048 K010000        0
048 K020000 0.000
049  000000 N
050  000000 N
051  000000 N
052  000000 N
053 A000000 N
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 Y
054 E000000 Y
054 F000000 Y
054 G000000 Y
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 Y
054 L000000 Y
054 M000000 Y
054 N000000 Y
054 O000000 Y
055 A000000 Y
055 B000000 N
056  000000 Y
057  000000 N
058 A000000 N
059  000000 Y
060 A000000 Y
060 B000000 Y
061  000000        0
062 A000000 Y
062 B000000   0.4
062 C000000   0.0
062 D000000   0.4
062 E000000   0.0
062 F000000   0.0
062 G000000   0.0
062 H000000   0.0
062 I000000   0.0
062 J000000   0.0
062 K000000   0.0
062 L000000   0.0
062 M000000  33.4
062 N000000 103.5
062 O000000   0.4
062 P000000  37.0
062 Q000000  46.6
062 R000000   0.2
063 A000000   0
      PAGE  10
063 B000000  3.7
064 A000000 N
064 B000000 N
066 A000000 N
067  000000 N
068 A000000 N
068 B000000 N
069  000000 N
070 A010000 Y
070 A020000 Y
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 Y
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 Y
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 Y
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 Y
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000    852068
071 B000000    958343
071 C000000    947366
071 D000000   90
072 A000000 12
072 B000000    41704
072 C000000        4
      PAGE  11
072 D000000        0
072 E000000        0
072 F000000     3342
072 G000000        0
072 H000000        0
072 I000000       14
072 J000000      110
072 K000000        0
072 L000000       50
072 M000000       23
072 N000000        0
072 O000000        0
072 P000000      743
072 Q000000        0
072 R000000       59
072 S000000       31
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000       33
072 X000000     4405
072 Y000000        0
072 Z000000    37303
072AA000000    15398
072BB000000        0
072CC010000        0
072CC020000    38494
072DD010000    42226
072DD020000        0
072EE000000        0
073 A010000   1.1148
073 A020000   0.0000
073 B000000   0.0000
073 C000000   0.0000
074 A000000      899
074 B000000     1579
074 C000000     1604
074 D000000   786091
074 E000000        0
074 F000000      536
074 G000000        0
074 H000000        0
074 I000000        0
074 J000000   182856
074 K000000        0
074 L000000     4881
074 M000000     4564
074 N000000   983010
074 O000000   489787
074 P000000      290
074 Q000000        0
      PAGE  12
074 R010000   124653
074 R020000        0
074 R030000        0
074 R040000    12338
074 S000000        0
074 T000000   355942
074 U010000    41518
074 U020000        0
074 V010000     8.57
074 V020000     0.00
074 W000000   0.0000
074 X000000    26557
074 Y000000   240045
075 A000000        0
075 B000000   373628
076  000000     9.65
077 A000000 Y
077 B000000 Y
077 C000000 Y
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078  000000 N
080 A000000 National Union Fire Insurance Company
080 B000000 Great American Ins Co. & Berkley Regional Ins
080 C000000    67500
081 A000000 Y
081 B000000  25
082 A000000 Y
082 B000000      250
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
085 B000000 N
086 A010000      0
086 A020000      0
      PAGE  13
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
087 A010000 PIMCO STRATEGIC INCOME FUND INC.
087 A020000 72200X104
087 A030000 RCS
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 N
SIGNATURE   WILLIAM G. GALIPEAU
TITLE       TREASURER