List of reporting marks: Y
- v
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List of North American reporting marks
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
Note: Marks ending in U are for container owners; marks ending in X are not common carriers; marks ending in Z are for trailers without flanged wheels. All other marks are of common-carrier railroads.
Y
- YAN - Yancey Railroad
- YARR - Youngstown and Austintown Railroad
- YB - Youngstown Belt Railroad
- YCR - Yakima Central Railway
- YCRK - Yellow Creek Railroad
- YDHR - York Durham Heritage Railway
- YRC - York Railway
- YKR - Yorkrail; York Railway
- YRPL - Yelm Roy Prairie Line
- YS - Youngstown and Southern Railway
- YSDX - Youngstown Steel Door Company
- YSMX - Canadian Gypsum Company
- YSRR - Youngstown and Southeastern Railroad
- YSTX - Youngstown Sheet and Tube Company
- YSVR - Yellowstone Valley Railroad
- YV - Yosemite Valley Railway
- YVT - Yakima Valley Transportation Company
- YW - Yreka Western Railroad